3b+9=2b-6

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Solution for 3b+9=2b-6 equation:


Simplifying
3b + 9 = 2b + -6

Reorder the terms:
9 + 3b = 2b + -6

Reorder the terms:
9 + 3b = -6 + 2b

Solving
9 + 3b = -6 + 2b

Solving for variable 'b'.

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

Add '-2b' to each side of the equation.
9 + 3b + -2b = -6 + 2b + -2b

Combine like terms: 3b + -2b = 1b
9 + 1b = -6 + 2b + -2b

Combine like terms: 2b + -2b = 0
9 + 1b = -6 + 0
9 + 1b = -6

Add '-9' to each side of the equation.
9 + -9 + 1b = -6 + -9

Combine like terms: 9 + -9 = 0
0 + 1b = -6 + -9
1b = -6 + -9

Combine like terms: -6 + -9 = -15
1b = -15

Divide each side by '1'.
b = -15

Simplifying
b = -15

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