7x-9=4x+90

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Solution for 7x-9=4x+90 equation:


7x-9=4x+90

We simplify the equation to the form, which is simple to understand 
7x-9=4x+90

We move all terms containing x to the left and all other terms to the right. 
+7x-4x=+90+9

We simplify left and right side of the equation. 
+3x=+99

We divide both sides of the equation by 3 to get x. 
x=33

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