10b-30=15

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Solution for 10b-30=15 equation: 


Simplifying
10b + -30 = 15

Reorder the terms:
-30 + 10b = 15

Solving
-30 + 10b = 15

Solving for variable 'b'.

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

Add '30' to each side of the equation.
-30 + 30 + 10b = 15 + 30

Combine like terms: -30 + 30 = 0
0 + 10b = 15 + 30
10b = 15 + 30

Combine like terms: 15 + 30 = 45
10b = 45

Divide each side by '10'.
b = 4.5

Simplifying
b = 4.5

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