3x + 5 = 5x + 2
Subtract 3x from both sides: 5 = 2x + 2
Subtract 2 from both sides: 3 = 2x
Divide both sides by 2: 3/2 = x
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5x - 10 = 3x + 2 5x - 3x = 2 + 10 2x = 12 x = 12/2 x = 6
For 5x+y=1, you would subtract 5x from each side, so you would get y=1-5x For 3x+2y=2, you would subtract 3x from each side, and then divide by 2. 2y=2-3x y=1-(3/2)x
6-3x = 5x-10x+2 4 = 8x-10x 4 = -2x x = -2
3x=-4 is as far as I can work it.
-3x+2 = 2x-8 8+2 = 2x+3x 10 = 5x x = 2