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45+30=(2x-15)
We simplify the equation to the form, which is simple to understand
45+30=(2x-15)
Remove unnecessary parentheses
45+30=2x-15
We move all terms containing x to the left and all other terms to the right.
-2x=-15-45-30
We simplify left and right side of the equation.
-2x=-90
We divide both sides of the equation by -02 to get x.
x=45
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