7x+5+x=21

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Solution for 7x+5+x=21 equation:


7x+5+x=21

We simplify the equation to the form, which is simple to understand 
7x+5+x=21

We move all terms containing x to the left and all other terms to the right. 
+7x+1x=+21-5

We simplify left and right side of the equation. 
+8x=+16

We divide both sides of the equation by 8 to get x. 
x=2

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