A+3X=40

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Solution for A+3X=40 equation: 


Simplifying
A + 3X = 40

Solving
A + 3X = 40

Solving for variable 'A'.

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

Add '-3X' to each side of the equation.
A + 3X + -3X = 40 + -3X

Combine like terms: 3X + -3X = 0
A + 0 = 40 + -3X
A = 40 + -3X

Simplifying
A = 40 + -3X

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