2x+40+x+20=90

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Solution for 2x+40+x+20=90 equation: 


Simplifying
2x + 40 + x + 20 = 90

Reorder the terms:
40 + 20 + 2x + x = 90

Combine like terms: 40 + 20 = 60
60 + 2x + x = 90

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

Solving
60 + 3x = 90

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 + 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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