AX+b=3(a-b)

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Solution for AX+b=3(a-b) equation: 


Simplifying
AX + b = 3(a + -1b)
AX + b = (a * 3 + -1b * 3)
AX + b = (3a + -3b)

Solving
AX + b = 3a + -3b

Solving for variable 'A'.

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

Add '-1b' to each side of the equation.
AX + b + -1b = 3a + -3b + -1b

Combine like terms: b + -1b = 0
AX + 0 = 3a + -3b + -1b
AX = 3a + -3b + -1b

Combine like terms: -3b + -1b = -4b
AX = 3a + -4b

Divide each side by 'X'.
A = 3aX-1 + -4bX-1

Simplifying
A = 3aX-1 + -4bX-1

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