-4=-7x+21

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


-4=-7x+21

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

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

We simplify left and right side of the equation. 
+7x=+25

We divide both sides of the equation by 07 to get x. 
x=3.5714285714286

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