1.8x+0.7x-x=30

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Solution for 1.8x+0.7x-x=30 equation: 


Simplifying
1.8x + 0.7x + -1x = 30

Combine like terms: 1.8x + 0.7x = 2.5x
2.5x + -1x = 30

Combine like terms: 2.5x + -1x = 1.5x
1.5x = 30

Solving
1.5x = 30

Solving for variable 'x'.

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

Divide each side by '1.5'.
x = 20

Simplifying
x = 20

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