x+x-20+x-20+x-20=0

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Solution for x+x-20+x-20+x-20=0 equation:


Simplifying
x + x + -20 + x + -20 + x + -20 = 0

Reorder the terms:
-20 + -20 + -20 + x + x + x + x = 0

Combine like terms: -20 + -20 = -40
-40 + -20 + x + x + x + x = 0

Combine like terms: -40 + -20 = -60
-60 + x + x + x + x = 0

Combine like terms: x + x = 2x
-60 + 2x + x + x = 0

Combine like terms: 2x + x = 3x
-60 + 3x + x = 0

Combine like terms: 3x + x = 4x
-60 + 4x = 0

Solving
-60 + 4x = 0

Solving for variable 'x'.

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

Add '60' to each side of the equation.
-60 + 60 + 4x = 0 + 60

Combine like terms: -60 + 60 = 0
0 + 4x = 0 + 60
4x = 0 + 60

Combine like terms: 0 + 60 = 60
4x = 60

Divide each side by '4'.
x = 15

Simplifying
x = 15

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