3a(4b)-4b=20

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Solution for 3a(4b)-4b=20 equation:


Simplifying
3a(4b) + -4b = 20

Remove parenthesis around (4b)
3a * 4b + -4b = 20

Reorder the terms for easier multiplication:
3 * 4a * b + -4b = 20

Multiply 3 * 4
12a * b + -4b = 20

Multiply a * b
12ab + -4b = 20

Solving
12ab + -4b = 20

Solving for variable 'a'.

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

Add '4b' to each side of the equation.
12ab + -4b + 4b = 20 + 4b

Combine like terms: -4b + 4b = 0
12ab + 0 = 20 + 4b
12ab = 20 + 4b

Divide each side by '12b'.
a = 1.666666667b-1 + 0.3333333333

Simplifying
a = 1.666666667b-1 + 0.3333333333

Reorder the terms:
a = 0.3333333333 + 1.666666667b-1

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