100-3x=15x+20

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Solution for 100-3x=15x+20 equation:


Simplifying
100 + -3x = 15x + 20

Reorder the terms:
100 + -3x = 20 + 15x

Solving
100 + -3x = 20 + 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 + -3x + -15x = 20 + 15x + -15x

Combine like terms: -3x + -15x = -18x
100 + -18x = 20 + 15x + -15x

Combine like terms: 15x + -15x = 0
100 + -18x = 20 + 0
100 + -18x = 20

Add '-100' to each side of the equation.
100 + -100 + -18x = 20 + -100

Combine like terms: 100 + -100 = 0
0 + -18x = 20 + -100
-18x = 20 + -100

Combine like terms: 20 + -100 = -80
-18x = -80

Divide each side by '-18'.
x = 4.444444444

Simplifying
x = 4.444444444

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