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-5x+2x=10x+8+12x+42
We simplify the equation to the form, which is simple to understand
-5x+2x=10x+8+12x+42
We move all terms containing x to the left and all other terms to the right.
-5x+2x-10x-12x=+8+42
We simplify left and right side of the equation.
-25x=+50
We divide both sides of the equation by -25 to get x.
x=-2
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