3B+4A=12

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Solution for 3B+4A=12 equation: 


Simplifying
3B + 4A = 12

Reorder the terms:
4A + 3B = 12

Solving
4A + 3B = 12

Solving for variable 'A'.

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

Add '-3B' to each side of the equation.
4A + 3B + -3B = 12 + -3B

Combine like terms: 3B + -3B = 0
4A + 0 = 12 + -3B
4A = 12 + -3B

Divide each side by '4'.
A = 3 + -0.75B

Simplifying
A = 3 + -0.75B

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