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4x+12-45x-30=0
We simplify the equation to the form, which is simple to understand
4x+12-45x-30=0
We move all terms containing x to the left and all other terms to the right.
+4x-45x=0-12+30
We simplify left and right side of the equation.
-41x=+18
We divide both sides of the equation by -41 to get x.
x=-0.439024390244
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