Solve for x
x=137-y
Solve for y
y=137-x
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x-12=125-y
Subtract y from both sides.
x=125-y+12
Add 12 to both sides.
x=137-y
Add 125 and 12 to get 137.
y-12=125-x
Subtract x from both sides.
y=125-x+12
Add 12 to both sides.
y=137-x
Add 125 and 12 to get 137.
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