x-0.9*x=7

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Solution for x-0.9*x=7 equation:


x-0.9*x=7

We simplify the equation to the form, which is simple to understand 
x-0.9*x=7

We move all terms containing x to the left and all other terms to the right. 
+1x-0.9x=+7

We simplify left and right side of the equation. 
 + 0.1x=+7

We divide both sides of the equation by 0.1 to get x. 
x=70

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