X+40+50=390

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Solution for X+40+50=390 equation: 


Simplifying
X + 40 + 50 = 390

Reorder the terms:
40 + 50 + X = 390

Combine like terms: 40 + 50 = 90
90 + X = 390

Solving
90 + X = 390

Solving for variable 'X'.

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

Add '-90' to each side of the equation.
90 + -90 + X = 390 + -90

Combine like terms: 90 + -90 = 0
0 + X = 390 + -90
X = 390 + -90

Combine like terms: 390 + -90 = 300
X = 300

Simplifying
X = 300

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