A+120-30=270

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Solution for A+120-30=270 equation: 


Simplifying
A + 120 + -30 = 270

Reorder the terms:
120 + -30 + A = 270

Combine like terms: 120 + -30 = 90
90 + A = 270

Solving
90 + A = 270

Solving for variable 'A'.

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

Add '-90' to each side of the equation.
90 + -90 + A = 270 + -90

Combine like terms: 90 + -90 = 0
0 + A = 270 + -90
A = 270 + -90

Combine like terms: 270 + -90 = 180
A = 180

Simplifying
A = 180

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