solve for y (5x + 5y = 10) + (3x - y = 14)

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    5x+5y=10

+  3x-y=14
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1 Answer

line 1: 3x-y=14  or y=3x-14

line 2: 5x+5y=10   or x+y=2

x+(3x-14)=2

4x-14=2

4x=16

x=4

y=3x-14=12-14 =-2
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