40+20+x=40+40+10-2(x)

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Solution for 40+20+x=40+40+10-2(x) equation: 


Simplifying
40 + 20 + x = 40 + 40 + 10 + -2(x)

Combine like terms: 40 + 20 = 60
60 + x = 40 + 40 + 10 + -2(x)

Combine like terms: 40 + 40 = 80
60 + x = 80 + 10 + -2x

Combine like terms: 80 + 10 = 90
60 + x = 90 + -2x

Solving
60 + x = 90 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
60 + x + 2x = 90 + -2x + 2x

Combine like terms: x + 2x = 3x
60 + 3x = 90 + -2x + 2x

Combine like terms: -2x + 2x = 0
60 + 3x = 90 + 0
60 + 3x = 90

Add '-60' to each side of the equation.
60 + -60 + 3x = 90 + -60

Combine like terms: 60 + -60 = 0
0 + 3x = 90 + -60
3x = 90 + -60

Combine like terms: 90 + -60 = 30
3x = 30

Divide each side by '3'.
x = 10

Simplifying
x = 10

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