7b+9=9b+11

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Solution for 7b+9=9b+11 equation:


Simplifying
7b + 9 = 9b + 11

Reorder the terms:
9 + 7b = 9b + 11

Reorder the terms:
9 + 7b = 11 + 9b

Solving
9 + 7b = 11 + 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.
9 + 7b + -9b = 11 + 9b + -9b

Combine like terms: 7b + -9b = -2b
9 + -2b = 11 + 9b + -9b

Combine like terms: 9b + -9b = 0
9 + -2b = 11 + 0
9 + -2b = 11

Add '-9' to each side of the equation.
9 + -9 + -2b = 11 + -9

Combine like terms: 9 + -9 = 0
0 + -2b = 11 + -9
-2b = 11 + -9

Combine like terms: 11 + -9 = 2
-2b = 2

Divide each side by '-2'.
b = -1

Simplifying
b = -1

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