5x+9x-42=105-7x

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Solution for 5x+9x-42=105-7x equation:


5x+9x-42=105-7x

We simplify the equation to the form, which is simple to understand 
5x+9x-42=105-7x

We move all terms containing x to the left and all other terms to the right. 
+5x+9x+7x=+105+42

We simplify left and right side of the equation. 
+21x=+147

We divide both sides of the equation by 21 to get x. 
x=7

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