20x+100=15x+80

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Solution for 20x+100=15x+80 equation:


Simplifying
20x + 100 = 15x + 80

Reorder the terms:
100 + 20x = 15x + 80

Reorder the terms:
100 + 20x = 80 + 15x

Solving
100 + 20x = 80 + 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
100 + 20x + -15x = 80 + 15x + -15x

Combine like terms: 20x + -15x = 5x
100 + 5x = 80 + 15x + -15x

Combine like terms: 15x + -15x = 0
100 + 5x = 80 + 0
100 + 5x = 80

Add '-100' to each side of the equation.
100 + -100 + 5x = 80 + -100

Combine like terms: 100 + -100 = 0
0 + 5x = 80 + -100
5x = 80 + -100

Combine like terms: 80 + -100 = -20
5x = -20

Divide each side by '5'.
x = -4

Simplifying
x = -4

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