180=4b+20+40

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Solution for 180=4b+20+40 equation:


Simplifying
180 = 4b + 20 + 40

Reorder the terms:
180 = 20 + 40 + 4b

Combine like terms: 20 + 40 = 60
180 = 60 + 4b

Solving
180 = 60 + 4b

Solving for variable 'b'.

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

Add '-4b' to each side of the equation.
180 + -4b = 60 + 4b + -4b

Combine like terms: 4b + -4b = 0
180 + -4b = 60 + 0
180 + -4b = 60

Add '-180' to each side of the equation.
180 + -180 + -4b = 60 + -180

Combine like terms: 180 + -180 = 0
0 + -4b = 60 + -180
-4b = 60 + -180

Combine like terms: 60 + -180 = -120
-4b = -120

Divide each side by '-4'.
b = 30

Simplifying
b = 30

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