Asked by Anonymous
find x if (x,-2) is a solution to the equation 3x+2y=-7.
my answer was x=1 but it was wrong.
my answer was x=1 but it was wrong.
Answers
Answered by
PsyDAG
3x + 2(-2) = -7
Multiply.
3x - 4 = -7
Add 4 to both sides.
3x = -3
Divide by 3.
x = -1
Multiply.
3x - 4 = -7
Add 4 to both sides.
3x = -3
Divide by 3.
x = -1
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