2x=21-7

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Solution for 2x=21-7 equation:


2x=21-7

We simplify the equation to the form, which is simple to understand 
2x=21-7

We move all terms containing x to the left and all other terms to the right. 
+2x=+21-7

We simplify left and right side of the equation. 
+2x=+14

We divide both sides of the equation by 2 to get x. 
x=7

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