7b+9-3b+20=

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Solution for 7b+9-3b+20= equation:


Simplifying
7b + 9 + -3b + 20 = 0

Reorder the terms:
9 + 20 + 7b + -3b = 0

Combine like terms: 9 + 20 = 29
29 + 7b + -3b = 0

Combine like terms: 7b + -3b = 4b
29 + 4b = 0

Solving
29 + 4b = 0

Solving for variable 'b'.

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

Add '-29' to each side of the equation.
29 + -29 + 4b = 0 + -29

Combine like terms: 29 + -29 = 0
0 + 4b = 0 + -29
4b = 0 + -29

Combine like terms: 0 + -29 = -29
4b = -29

Divide each side by '4'.
b = -7.25

Simplifying
b = -7.25

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