b*7+4=9*b

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Solution for b*7+4=9*b equation:


Simplifying
b * 7 + 4 = 9b

Reorder the terms for easier multiplication:
7b + 4 = 9b

Reorder the terms:
4 + 7b = 9b

Solving
4 + 7b = 9b

Solving for variable 'b'.

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

Add '-9b' to each side of the equation.
4 + 7b + -9b = 9b + -9b

Combine like terms: 7b + -9b = -2b
4 + -2b = 9b + -9b

Combine like terms: 9b + -9b = 0
4 + -2b = 0

Add '-4' to each side of the equation.
4 + -4 + -2b = 0 + -4

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

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

Divide each side by '-2'.
b = 2

Simplifying
b = 2

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