= 18x + 13
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2x+3 = 3x+5 2x-3x = 5-3 -x = 2 x = -2
2x-5=3x+6 -5-6=3x-2x -11=x x=-11
2x+12-3x = 5 2x-3x = 5-12 -x = -7 x = 7
-3x + (-18) = 2x + 7 +18 +18 -3x = 2x +25 -2x -2x -5x = 25 ----- ----- -5 -5 x=-5 *------- equals a division line
2x+5=3x+1 -x=-4 x=4