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3(5x+2)-7(3-x)=(19+5x)+(20-x)
We simplify the equation to the form, which is simple to understand
3(5x+2)-7(3-x)=(19+5x)+(20-x)
Reorder the terms in parentheses
+(+15x+6)-7*(3-x)=(19+5x)+(20-x)
Remove unnecessary parentheses
+15x+6-7+*(+3-x+)=+(+19+5x+)+(+20-x+)
Reorder the terms in parentheses
+15x+6+(-21+7x)=(19+5x)+(20-x)
Remove unnecessary parentheses
+15x+6-21+7x=+(+19+5x+)+(+20-x+)
Remove unnecessary parentheses
+15x+6-21+7x=19+5x+(20-x)
Remove unnecessary parentheses
+15x+6-21+7x=+19+5x+20-x
We move all terms containing x to the left and all other terms to the right.
+15x+7x-5x+1x=+19+20-6+21
We simplify left and right side of the equation.
+18x=+54
We divide both sides of the equation by 18 to get x.
x=3
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