Substitution for y=-8 and y=-2x-12

asked May 10, 2016 127k views

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subsitute -8 for y so
-8=-2x-12
add 12 to both sides
12-8=-2x+12-12
4=-2x+0
4=-2x
divide both sdie sby 2
2=-x
multiply -1
-2=x

Riegersn answered May 12, 2016

8.8k points

3 votes

So,

Substitute -8 for y
-8 = -2x - 12

Add 12 to both sides
4 = -2x

Divide both sides by -2
-2 = x

Sjas answered May 17, 2016

by Sjas

8.3k points

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