Ang Imhr.ca ang pinakamahusay na lugar upang makakuha ng mabilis at tumpak na mga sagot sa lahat ng iyong mga tanong. Tuklasin ang isang kayamanan ng kaalaman mula sa mga eksperto sa iba't ibang disiplina sa aming komprehensibong Q&A platform. Tuklasin ang detalyadong mga sagot sa iyong mga tanong mula sa isang malawak na network ng mga eksperto sa aming komprehensibong Q&A platform.
Sagot :
Step-by-step explanation:
✒️ELIMINATION
••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
\large\underline{\mathbb{ANSWER}:}
ANSWER:
\qquad \Large \:\: \rm 1) \; x = 5 \;,\; y = 61)x=5,y=6
\qquad \Large \:\: \rm 2) \; x = 2 \;,\; y = \text-12)x=2,y=-1
\qquad \Large \:\: \rm 3) \; x = 6 \;,\; y = 43)x=6,y=4
••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
\large\underline{\mathbb{SOLUTION}:}
SOLUTION:
Number 1:
Give the two equations.
\begin{gathered} \begin{cases} 4x - y = 14 \\ x + y = 11 \end{cases} \quad \begin{aligned} \tt{(eq. \: 1)} \\ \tt{(eq. \: 2)} \end{aligned} \end{gathered}
{
4x−y=14
x+y=11
(eq.1)
(eq.2)
Eliminate y to find x by adding the two equations.
4x - \cancel y + x + \cancel y = 14 + 114x−
y
+x+
y
=14+11
4x + x = 14 + 114x+x=14+11
5x = 255x=25
\begin{gathered} \frac{5x}5 = \frac{25}5 \\ \end{gathered}
5
5x
=
5
25
x = 5x=5
Thus, the value of x is 5. Substitute it to either one of the equation to find y.
x + y = 11 \:;\: x = 5x+y=11;x=5
5 + y = 115+y=11
y = 11 - 5y=11−5
y = 6y=6
Therefore, the value of y is 6
••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
Number 2:
Give the two equations.
\begin{gathered} \begin{cases} 4x - y = 9 \\ 3x + 2y = 4 \end{cases} \quad \begin{aligned} \tt{(eq. \: 1)} \\ \tt{(eq. \: 2)} \end{aligned} \end{gathered}
{
4x−y=9
3x+2y=4
(eq.1)
(eq.2)
Multiply the first equation by 2 to match the opposite coefficients of y.
2(4x - y) = 2(9)2(4x−y)=2(9)
8x - 2y = 188x−2y=18
Eliminate y to find x by adding the two equations.
8x - \cancel {2y} + 3x + \cancel {2y} = 18 + 48x−
2y
+3x+
2y
=18+4
8x + 3x = 18 + 48x+3x=18+4
11x = 2211x=22
\begin{gathered} \frac{11x}{11} = \frac{\,22\,}{11} \\ \end{gathered}
11
11x
=
11
22
x = 2x=2
Thus, the value of x is 2. Substitute it to either one of the equation to find y.
4x - y = 9 \:;\: x = 24x−y=9;x=2
4(2) - y = 94(2)−y=9
8 - y = 98−y=9
\text-y = 9 - 8-y=9−8
\text- y = 1-y=1
y = \text-1y=-1
Therefore, the value of y is -1
••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
Number 3:
Give the two equations.
\begin{gathered} \begin{cases} x + y = 10 \\ x - y = 2 \end{cases} \quad \begin{aligned} \tt{(eq. \: 1)} \\ \tt{(eq. \: 2)} \end{aligned} \end{gathered}
{
x+y=10
x−y=2
(eq.1)
(eq.2)
Eliminate y to find x by adding the two equations.
x - \cancel y + x + \cancel y = 10 + 2x−
y
+x+
y
=10+2
x + x = 10 + 2x+x=10+2
2x = 122x=12
\begin{gathered} \frac{2x}2 = \frac{12}2 \\ \end{gathered}
2
2x
=
2
12
x = 6x=6
Thus, the value of x is 6. Substitute it to either one of the equation to find y.
x + y = 10 \:;\: x = 6x+y=10;x=6
6 + y = 106+y=10
y = 10 - 6y=10−6
y = 4y=4
Therefore, the value of y is 4
••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
(ノ^_^)ノ
Umaasa kaming naging kapaki-pakinabang ang aming mga sagot. Bumalik anumang oras para sa karagdagang impormasyon at mga sagot sa iba pang mga tanong na mayroon ka. Salamat sa pagpili sa aming plataporma. Kami ay nakatuon sa pagbibigay ng pinakamahusay na mga sagot para sa lahat ng iyong mga katanungan. Bisitahin muli kami. Imhr.ca ay nandito upang magbigay ng tamang sagot sa iyong mga katanungan. Bumalik muli para sa higit pang impormasyon.