7b-0.4=8b

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Solution for 7b-0.4=8b equation:


Simplifying
7b + -0.4 = 8b

Reorder the terms:
-0.4 + 7b = 8b

Solving
-0.4 + 7b = 8b

Solving for variable 'b'.

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

Add '-8b' to each side of the equation.
-0.4 + 7b + -8b = 8b + -8b

Combine like terms: 7b + -8b = -1b
-0.4 + -1b = 8b + -8b

Combine like terms: 8b + -8b = 0
-0.4 + -1b = 0

Add '0.4' to each side of the equation.
-0.4 + 0.4 + -1b = 0 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + -1b = 0 + 0.4
-1b = 0 + 0.4

Combine like terms: 0 + 0.4 = 0.4
-1b = 0.4

Divide each side by '-1'.
b = -0.4

Simplifying
b = -0.4

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