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(3x+4)-30=0
We simplify the equation to the form, which is simple to understand
(3x+4)-30=0
Remove unnecessary parentheses
3x+4-30=0
We move all terms containing x to the left and all other terms to the right.
+3x=0-4+30
We simplify left and right side of the equation.
+3x=+26
We divide both sides of the equation by 3 to get x.
x=8.66666666667
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