7.5-.15b+.4b=15

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Solution for 7.5-.15b+.4b=15 equation:


Simplifying
7.5 + -0.15b + 0.4b = 15

Combine like terms: -0.15b + 0.4b = 0.25b
7.5 + 0.25b = 15

Solving
7.5 + 0.25b = 15

Solving for variable 'b'.

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

Add '-7.5' to each side of the equation.
7.5 + -7.5 + 0.25b = 15 + -7.5

Combine like terms: 7.5 + -7.5 = 0.0
0.0 + 0.25b = 15 + -7.5
0.25b = 15 + -7.5

Combine like terms: 15 + -7.5 = 7.5
0.25b = 7.5

Divide each side by '0.25'.
b = 30

Simplifying
b = 30

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