X+X+30=90

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Solution for X+X+30=90 equation:


Simplifying
X + X + 30 = 90

Reorder the terms:
30 + X + X = 90

Combine like terms: X + X = 2X
30 + 2X = 90

Solving
30 + 2X = 90

Solving for variable 'X'.

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

Add '-30' to each side of the equation.
30 + -30 + 2X = 90 + -30

Combine like terms: 30 + -30 = 0
0 + 2X = 90 + -30
2X = 90 + -30

Combine like terms: 90 + -30 = 60
2X = 60

Divide each side by '2'.
X = 30

Simplifying
X = 30

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