7x = 5+5x
7x-5x = 5
2x = 5
x = 2.5
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x=6
7x + 4 = 2x + 5Subtract 4 from each side of the equation:7x = 2x + 1Subtract 2x from each side:5x = 1Divide each side by 5:x = 1/5 = 0.2
5x - 3y -7x + 2y +3x = (5-7+3)x + (-3+2)y = x - y
-5x + 13 = -12 -5x = -12 - 13 = -25 x = -25/-5 = 5
5x+10=40 5x+10-10=40-10 5x=30 5x/5=30/5 x=6