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x-(4x-7)=5x-(5x+21)
We simplify the equation to the form, which is simple to understand
x-(4x-7)=5x-(5x+21)
Remove unnecessary parentheses
x-4x+7=5x-(5x+21)
Remove unnecessary parentheses
x-4x+7=5x-5x-21
We move all terms containing x to the left and all other terms to the right.
+1x-4x-5x+5x=-21-7
We simplify left and right side of the equation.
-3x=-28
We divide both sides of the equation by -3 to get x.
x=9.33333333333
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