40+b=5b+80

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Solution for 40+b=5b+80 equation:


Simplifying
40 + b = 5b + 80

Reorder the terms:
40 + b = 80 + 5b

Solving
40 + b = 80 + 5b

Solving for variable 'b'.

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

Add '-5b' to each side of the equation.
40 + b + -5b = 80 + 5b + -5b

Combine like terms: b + -5b = -4b
40 + -4b = 80 + 5b + -5b

Combine like terms: 5b + -5b = 0
40 + -4b = 80 + 0
40 + -4b = 80

Add '-40' to each side of the equation.
40 + -40 + -4b = 80 + -40

Combine like terms: 40 + -40 = 0
0 + -4b = 80 + -40
-4b = 80 + -40

Combine like terms: 80 + -40 = 40
-4b = 40

Divide each side by '-4'.
b = -10

Simplifying
b = -10

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