1--2x=7

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Solution for 1--2x=7 equation:


1--2x=7

We simplify the equation to the form, which is simple to understand 
1+2x=7

We move all terms containing x to the left and all other terms to the right. 
+2x=+7-1

We simplify left and right side of the equation. 
+2x=+6

We divide both sides of the equation by 2 to get x. 
x=3

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