x+x+40+(2x+40)=20

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Solution for x+x+40+(2x+40)=20 equation:


Simplifying
x + x + 40 + (2x + 40) = 20

Reorder the terms:
x + x + 40 + (40 + 2x) = 20

Remove parenthesis around (40 + 2x)
x + x + 40 + 40 + 2x = 20

Reorder the terms:
40 + 40 + x + x + 2x = 20

Combine like terms: 40 + 40 = 80
80 + x + x + 2x = 20

Combine like terms: x + x = 2x
80 + 2x + 2x = 20

Combine like terms: 2x + 2x = 4x
80 + 4x = 20

Solving
80 + 4x = 20

Solving for variable 'x'.

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

Add '-80' to each side of the equation.
80 + -80 + 4x = 20 + -80

Combine like terms: 80 + -80 = 0
0 + 4x = 20 + -80
4x = 20 + -80

Combine like terms: 20 + -80 = -60
4x = -60

Divide each side by '4'.
x = -15

Simplifying
x = -15

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