8x+9=7x-12

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Solution for 8x+9=7x-12 equation:


8x+9=7x-12

We simplify the equation to the form, which is simple to understand 
8x+9=7x-12

We move all terms containing x to the left and all other terms to the right. 
+8x-7x=-12-9

We simplify left and right side of the equation. 
+1x=-21

We divide both sides of the equation by 1 to get x. 
x=-21

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