8x-4-2x+7=21

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Solution for 8x-4-2x+7=21 equation:


8x-4-2x+7=21

We simplify the equation to the form, which is simple to understand 
8x-4-2x+7=21

We move all terms containing x to the left and all other terms to the right. 
+8x-2x=+21+4-7

We simplify left and right side of the equation. 
+6x=+18

We divide both sides of the equation by 6 to get x. 
x=3

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