5x - 3 + x - 9 = 5x
Bring like terms together of the left side: 5x + x - 3 - 9 = 5x
Combine like terms: 6x - 12 = 5x
Add 12 to both sides: 6x = 5x + 12
Subtract 5x from both sides: x = 12
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x = -1.2, y = -3
-5x+50 = 25 -5x = 25-50 -5x = -25 x = 5
(5x800)+(5x20)+(5x3)=4000+100+15=4115