7x+2x+x=40

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Solution for 7x+2x+x=40 equation: 


Simplifying
7x + 2x + x = 40

Combine like terms: 7x + 2x = 9x
9x + x = 40

Combine like terms: 9x + x = 10x
10x = 40

Solving
10x = 40

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '10'.
x = 4

Simplifying
x = 4

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