20-x+30-2x+40-5x=0

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Solution for 20-x+30-2x+40-5x=0 equation:


Simplifying
20 + -1x + 30 + -2x + 40 + -5x = 0

Reorder the terms:
20 + 30 + 40 + -1x + -2x + -5x = 0

Combine like terms: 20 + 30 = 50
50 + 40 + -1x + -2x + -5x = 0

Combine like terms: 50 + 40 = 90
90 + -1x + -2x + -5x = 0

Combine like terms: -1x + -2x = -3x
90 + -3x + -5x = 0

Combine like terms: -3x + -5x = -8x
90 + -8x = 0

Solving
90 + -8x = 0

Solving for variable 'x'.

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

Add '-90' to each side of the equation.
90 + -90 + -8x = 0 + -90

Combine like terms: 90 + -90 = 0
0 + -8x = 0 + -90
-8x = 0 + -90

Combine like terms: 0 + -90 = -90
-8x = -90

Divide each side by '-8'.
x = 11.25

Simplifying
x = 11.25

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