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-x+7=4x+42
We simplify the equation to the form, which is simple to understand
-x+7=4x+42
We move all terms containing x to the left and all other terms to the right.
-1x-4x=+42-7
We simplify left and right side of the equation.
-5x=+35
We divide both sides of the equation by -5 to get x.
x=-7
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