4x - 10y = 32 4x - 10y = 32

-x + 3y = 9 -------> -4x + 12y = 36 ← multiplied bottom equation by 4

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2y = 68 ← added the two equations

y = 34 ← divided by 2

-x + 3y = 9 ← bottom equation

-x + 3(34) = 9 ← substituted 34, in for y, into bottom equation

-x + 102 = 9 ← multiplied

-x = -93 ← subtracted 102 from each side

x = 93 ← divided each side by -1

x = 93 and y = 34

- Proof

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