3.1b-7=2.8b+8

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Solution for 3.1b-7=2.8b+8 equation:


Simplifying
3.1b + -7 = 2.8b + 8

Reorder the terms:
-7 + 3.1b = 2.8b + 8

Reorder the terms:
-7 + 3.1b = 8 + 2.8b

Solving
-7 + 3.1b = 8 + 2.8b

Solving for variable 'b'.

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

Add '-2.8b' to each side of the equation.
-7 + 3.1b + -2.8b = 8 + 2.8b + -2.8b

Combine like terms: 3.1b + -2.8b = 0.3b
-7 + 0.3b = 8 + 2.8b + -2.8b

Combine like terms: 2.8b + -2.8b = 0.0
-7 + 0.3b = 8 + 0.0
-7 + 0.3b = 8

Add '7' to each side of the equation.
-7 + 7 + 0.3b = 8 + 7

Combine like terms: -7 + 7 = 0
0 + 0.3b = 8 + 7
0.3b = 8 + 7

Combine like terms: 8 + 7 = 15
0.3b = 15

Divide each side by '0.3'.
b = 50

Simplifying
b = 50

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