21+3(x+4)=4(x+5)

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Solution for 21+3(x+4)=4(x+5) equation:


21+3(x+4)=4(x+5)

We simplify the equation to the form, which is simple to understand 
21+3(x+4)=4(x+5)

Reorder the terms in parentheses
21+(+3x+12)=4*(x+5)

Remove unnecessary parentheses
+21+3x+12=+4+*(+x+5+)

Reorder the terms in parentheses
21+3x+12=+(+4x+20)

Remove unnecessary parentheses
+21+3x+12=+4x+20

We move all terms containing x to the left and all other terms to the right. 
+3x-4x=+20-21-12

We simplify left and right side of the equation. 
-1x=-13

We divide both sides of the equation by -1 to get x. 
x=13

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