3x+31=400

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Solution for 3x+31=400 equation:


3x+31=400

We simplify the equation to the form, which is simple to understand 
3x+31=400

We move all terms containing x to the left and all other terms to the right. 
+3x=+400-31

We simplify left and right side of the equation. 
+3x=+369

We divide both sides of the equation by 3 to get x. 
x=123

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