2x + (10x - 4) = 20 2x + 10x - 4 = 20 12x - 4 = 20 12x = 24 x = 2
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10x - 18 = 5x + 2 Add -5x + 18 to both sides of the equation, to get: 5x = 20, from which x = 4.
-20 = -4x - 6x -20 = -10x -20 / -10 = -10x / -10 2 = x x = 2
It is: -5x-20 when simplified
The given terms can be simplified to: 20x+20
x = 0 and y = 4