Answer
We can verify the equations by substituting in the given $x=-2$ and $y=4$ values and then check if the equalities still hold.
Here: $3x+2y=3\cdot(-2)+2\cdot4=-6+8=2$, which is correct. $x-7y=-2-7\cdot4=-2-28=-30$, which is correct.
Work Step by Step
We can verify the equations by substituting in the given $x=-2$ and $y=4$ values and then check if the equalities still hold.
Here: $3x+2y=3\cdot(-2)+2\cdot4=-6+8=2$, which is correct. $x-7y=-2-7\cdot4=-2-28=-30$, which is correct.