3.125=.3b+1.5-2.5b

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Solution for 3.125=.3b+1.5-2.5b equation:


Simplifying
3.125 = 0.3b + 1.5 + -2.5b

Reorder the terms:
3.125 = 1.5 + 0.3b + -2.5b

Combine like terms: 0.3b + -2.5b = -2.2b
3.125 = 1.5 + -2.2b

Solving
3.125 = 1.5 + -2.2b

Solving for variable 'b'.

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

Add '2.2b' to each side of the equation.
3.125 + 2.2b = 1.5 + -2.2b + 2.2b

Combine like terms: -2.2b + 2.2b = 0.0
3.125 + 2.2b = 1.5 + 0.0
3.125 + 2.2b = 1.5

Add '-3.125' to each side of the equation.
3.125 + -3.125 + 2.2b = 1.5 + -3.125

Combine like terms: 3.125 + -3.125 = 0.000
0.000 + 2.2b = 1.5 + -3.125
2.2b = 1.5 + -3.125

Combine like terms: 1.5 + -3.125 = -1.625
2.2b = -1.625

Divide each side by '2.2'.
b = -0.7386363636

Simplifying
b = -0.7386363636

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