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-3(2x+7)-5(x-3)=12x+15
We simplify the equation to the form, which is simple to understand
-3(2x+7)-5(x-3)=12x+15
Reorder the terms in parentheses
+(-6x-21)-5*(x-3)=12x+15
Remove unnecessary parentheses
-6x-21-5+*(+x-3+)=+12x+15
Reorder the terms in parentheses
-6x-21+(-5x+15)=12x+15
Remove unnecessary parentheses
-6x-21-5x+15=+12x+15
We move all terms containing x to the left and all other terms to the right.
-6x-5x-12x=+15+21-15
We simplify left and right side of the equation.
-23x=+21
We divide both sides of the equation by -23 to get x.
x=-0.91304347826087
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