8.7=1.5-9b

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Solution for 8.7=1.5-9b equation:


Simplifying
8.7 = 1.5 + -9b

Solving
8.7 = 1.5 + -9b

Solving for variable 'b'.

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

Add '9b' to each side of the equation.
8.7 + 9b = 1.5 + -9b + 9b

Combine like terms: -9b + 9b = 0
8.7 + 9b = 1.5 + 0
8.7 + 9b = 1.5

Add '-8.7' to each side of the equation.
8.7 + -8.7 + 9b = 1.5 + -8.7

Combine like terms: 8.7 + -8.7 = 0.0
0.0 + 9b = 1.5 + -8.7
9b = 1.5 + -8.7

Combine like terms: 1.5 + -8.7 = -7.2
9b = -7.2

Divide each side by '9'.
b = -0.8

Simplifying
b = -0.8

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