7b-9=b+2b+11

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Solution for 7b-9=b+2b+11 equation:


Simplifying
7b + -9 = b + 2b + 11

Reorder the terms:
-9 + 7b = b + 2b + 11

Reorder the terms:
-9 + 7b = 11 + b + 2b

Combine like terms: b + 2b = 3b
-9 + 7b = 11 + 3b

Solving
-9 + 7b = 11 + 3b

Solving for variable 'b'.

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

Add '-3b' to each side of the equation.
-9 + 7b + -3b = 11 + 3b + -3b

Combine like terms: 7b + -3b = 4b
-9 + 4b = 11 + 3b + -3b

Combine like terms: 3b + -3b = 0
-9 + 4b = 11 + 0
-9 + 4b = 11

Add '9' to each side of the equation.
-9 + 9 + 4b = 11 + 9

Combine like terms: -9 + 9 = 0
0 + 4b = 11 + 9
4b = 11 + 9

Combine like terms: 11 + 9 = 20
4b = 20

Divide each side by '4'.
b = 5

Simplifying
b = 5

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