7x+2x-x=30

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Solution for 7x+2x-x=30 equation: 


Simplifying
7x + 2x + -1x = 30

Combine like terms: 7x + 2x = 9x
9x + -1x = 30

Combine like terms: 9x + -1x = 8x
8x = 30

Solving
8x = 30

Solving for variable 'x'.

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

Divide each side by '8'.
x = 3.75

Simplifying
x = 3.75

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