70-x=40

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Solution for 70-x=40 equation:


70-x=40

We simplify the equation to the form, which is simple to understand 
70-x=40

We move all terms containing x to the left and all other terms to the right. 
-1x=+40-70

We simplify left and right side of the equation. 
-1x=-30

We divide both sides of the equation by -1 to get x. 
x=30

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