3.9x+9-1.9x=7

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Solution for 3.9x+9-1.9x=7 equation:


3.9x+9-1.9x=7

We simplify the equation to the form, which is simple to understand 
3.9x+9-1.9x=7

We move all terms containing x to the left and all other terms to the right. 
+3.9x-1.9x=+7-9

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

We divide both sides of the equation by 2 to get x. 
x=-1

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