111-5b=10b+21

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Solution for 111-5b=10b+21 equation:


Simplifying
111 + -5b = 10b + 21

Reorder the terms:
111 + -5b = 21 + 10b

Solving
111 + -5b = 21 + 10b

Solving for variable 'b'.

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

Add '-10b' to each side of the equation.
111 + -5b + -10b = 21 + 10b + -10b

Combine like terms: -5b + -10b = -15b
111 + -15b = 21 + 10b + -10b

Combine like terms: 10b + -10b = 0
111 + -15b = 21 + 0
111 + -15b = 21

Add '-111' to each side of the equation.
111 + -111 + -15b = 21 + -111

Combine like terms: 111 + -111 = 0
0 + -15b = 21 + -111
-15b = 21 + -111

Combine like terms: 21 + -111 = -90
-15b = -90

Divide each side by '-15'.
b = 6

Simplifying
b = 6

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