4b+9+7b=31

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Solution for 4b+9+7b=31 equation:


Simplifying
4b + 9 + 7b = 31

Reorder the terms:
9 + 4b + 7b = 31

Combine like terms: 4b + 7b = 11b
9 + 11b = 31

Solving
9 + 11b = 31

Solving for variable 'b'.

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

Add '-9' to each side of the equation.
9 + -9 + 11b = 31 + -9

Combine like terms: 9 + -9 = 0
0 + 11b = 31 + -9
11b = 31 + -9

Combine like terms: 31 + -9 = 22
11b = 22

Divide each side by '11'.
b = 2

Simplifying
b = 2

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