3ab+7b=5ab+4

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Solution for 3ab+7b=5ab+4 equation:


Simplifying
3ab + 7b = 5ab + 4

Reorder the terms:
3ab + 7b = 4 + 5ab

Solving
3ab + 7b = 4 + 5ab

Solving for variable 'a'.

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

Add '-5ab' to each side of the equation.
3ab + -5ab + 7b = 4 + 5ab + -5ab

Combine like terms: 3ab + -5ab = -2ab
-2ab + 7b = 4 + 5ab + -5ab

Combine like terms: 5ab + -5ab = 0
-2ab + 7b = 4 + 0
-2ab + 7b = 4

Add '-7b' to each side of the equation.
-2ab + 7b + -7b = 4 + -7b

Combine like terms: 7b + -7b = 0
-2ab + 0 = 4 + -7b
-2ab = 4 + -7b

Divide each side by '-2b'.
a = -2b-1 + 3.5

Simplifying
a = -2b-1 + 3.5

Reorder the terms:
a = 3.5 + -2b-1

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