8. y=7-2x
3x-5 (7-2x)=4
3x-35+10x=4
13x=39
x=13 y=7-26=-19
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8. y=7-2x
3x-5 (7-2x)=4
3x-35+10x=4
13x=39
x=13 y=7-26=-19