Solve each system by elimination. X+6y=-8
7x+2y=24
2 answers:
Answer:
y=-2
x=4
Step-by-step explanation:
equation 1: x + 6y = -8
equation 2: 7x + 2y = 24
To eliminate x first, multiply equation 1 by 7:
7x + 42y = -56
Then subtract the equations from each other:
{ 7x + 42y = -56 } - { 7x + 2y = 24 } = -40y=80
Then we divide both sides by -40 to isolate the <em>y</em>
y = -2
Then we plug -2 into y in one of the equations to find <em>x</em>:
7x+42y=-56
7x+42(-2)=-56
7x-84=-56
7x=28
x=4
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I think its the right one, not sure though
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