5(3b-8)-8b=121

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Solution for 5(3b-8)-8b=121 equation:


Simplifying
5(3b + -8) + -8b = 121

Reorder the terms:
5(-8 + 3b) + -8b = 121
(-8 * 5 + 3b * 5) + -8b = 121
(-40 + 15b) + -8b = 121

Combine like terms: 15b + -8b = 7b
-40 + 7b = 121

Solving
-40 + 7b = 121

Solving for variable 'b'.

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

Add '40' to each side of the equation.
-40 + 40 + 7b = 121 + 40

Combine like terms: -40 + 40 = 0
0 + 7b = 121 + 40
7b = 121 + 40

Combine like terms: 121 + 40 = 161
7b = 161

Divide each side by '7'.
b = 23

Simplifying
b = 23

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