Math

Solve x + 3y = 12 and x + 4y = 17

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x + 3y = 12

x + 3y -3y= 12 -3y

x=12 -3y

x + 4y = 17

12 -3y + 4y = 17

12 + y = 17

12 + y-12 = 17-12

y=5