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7-(x+5)=3x+7
We simplify the equation to the form, which is simple to understand
7-(x+5)=3x+7
Remove unnecessary parentheses
7-1x-5=3x+7
We move all terms containing x to the left and all other terms to the right.
-1x-3x=+7-7+5
We simplify left and right side of the equation.
-4x=+5
We divide both sides of the equation by -4 to get x.
x=-1.25
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