Question

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Answer 1

solve for y on the bottom equation then substitute what you got for y in the y of the top equation and solve

Answer 2

so the second equation is \[3.25x-y = -.75\] solve for y \[-y = -3.25x-.75\] subtract the x from both sides... then divide -1 from both sides because y is negative

Answer 3

\[y = 3.25x+.75\] now plug this into the first equation -4.5x-2y=-12.5 and you get \[-4.5x-2(3.25x+.75)=-12.5\] now solve