-30+6x-2.50x=40

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Solution for -30+6x-2.50x=40 equation: 


Simplifying
-30 + 6x + -2.50x = 40

Combine like terms: 6x + -2.50x = 3.5x
-30 + 3.5x = 40

Solving
-30 + 3.5x = 40

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + 3.5x = 40 + 30

Combine like terms: -30 + 30 = 0
0 + 3.5x = 40 + 30
3.5x = 40 + 30

Combine like terms: 40 + 30 = 70
3.5x = 70

Divide each side by '3.5'.
x = 20

Simplifying
x = 20

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