1+2(4)+3x=21

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Solution for 1+2(4)+3x=21 equation:


1+2(4)+3x=21

We simplify the equation to the form, which is simple to understand 
1+2(4)+3x=21

Reorder the terms in parentheses
1+(+8)+3x=21

Remove unnecessary parentheses
+1+8+3x=+21

We move all terms containing x to the left and all other terms to the right. 
+3x=+21-1-8

We simplify left and right side of the equation. 
+3x=+12

We divide both sides of the equation by 3 to get x. 
x=4

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