7b+4=9b-2

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Solution for 7b+4=9b-2 equation:


Simplifying
7b + 4 = 9b + -2

Reorder the terms:
4 + 7b = 9b + -2

Reorder the terms:
4 + 7b = -2 + 9b

Solving
4 + 7b = -2 + 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 = -2 + 9b + -9b

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

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

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

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

Combine like terms: -2 + -4 = -6
-2b = -6

Divide each side by '-2'.
b = 3

Simplifying
b = 3

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