20=5+b[15-5]

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Solution for 20=5+b[15-5] equation:


Simplifying
20 = 5 + b[15 + -5]

Combine like terms: 15 + -5 = 10
20 = 5 + b[10]

Reorder the terms for easier multiplication:
20 = 5 + 10b

Solving
20 = 5 + 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.
20 + -10b = 5 + 10b + -10b

Combine like terms: 10b + -10b = 0
20 + -10b = 5 + 0
20 + -10b = 5

Add '-20' to each side of the equation.
20 + -20 + -10b = 5 + -20

Combine like terms: 20 + -20 = 0
0 + -10b = 5 + -20
-10b = 5 + -20

Combine like terms: 5 + -20 = -15
-10b = -15

Divide each side by '-10'.
b = 1.5

Simplifying
b = 1.5

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