9b+2=12b-7

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Solution for 9b+2=12b-7 equation:


Simplifying
9b + 2 = 12b + -7

Reorder the terms:
2 + 9b = 12b + -7

Reorder the terms:
2 + 9b = -7 + 12b

Solving
2 + 9b = -7 + 12b

Solving for variable 'b'.

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

Add '-12b' to each side of the equation.
2 + 9b + -12b = -7 + 12b + -12b

Combine like terms: 9b + -12b = -3b
2 + -3b = -7 + 12b + -12b

Combine like terms: 12b + -12b = 0
2 + -3b = -7 + 0
2 + -3b = -7

Add '-2' to each side of the equation.
2 + -2 + -3b = -7 + -2

Combine like terms: 2 + -2 = 0
0 + -3b = -7 + -2
-3b = -7 + -2

Combine like terms: -7 + -2 = -9
-3b = -9

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

Simplifying
b = 3

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