7-0.8(b-1)=0.9(11b-1)

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Solution for 7-0.8(b-1)=0.9(11b-1) equation:


Simplifying
7 + -0.8(b + -1) = 0.9(11b + -1)

Reorder the terms:
7 + -0.8(-1 + b) = 0.9(11b + -1)
7 + (-1 * -0.8 + b * -0.8) = 0.9(11b + -1)
7 + (0.8 + -0.8b) = 0.9(11b + -1)

Combine like terms: 7 + 0.8 = 7.8
7.8 + -0.8b = 0.9(11b + -1)

Reorder the terms:
7.8 + -0.8b = 0.9(-1 + 11b)
7.8 + -0.8b = (-1 * 0.9 + 11b * 0.9)
7.8 + -0.8b = (-0.9 + 9.9b)

Solving
7.8 + -0.8b = -0.9 + 9.9b

Solving for variable 'b'.

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

Add '-9.9b' to each side of the equation.
7.8 + -0.8b + -9.9b = -0.9 + 9.9b + -9.9b

Combine like terms: -0.8b + -9.9b = -10.7b
7.8 + -10.7b = -0.9 + 9.9b + -9.9b

Combine like terms: 9.9b + -9.9b = 0.0
7.8 + -10.7b = -0.9 + 0.0
7.8 + -10.7b = -0.9

Add '-7.8' to each side of the equation.
7.8 + -7.8 + -10.7b = -0.9 + -7.8

Combine like terms: 7.8 + -7.8 = 0.0
0.0 + -10.7b = -0.9 + -7.8
-10.7b = -0.9 + -7.8

Combine like terms: -0.9 + -7.8 = -8.7
-10.7b = -8.7

Divide each side by '-10.7'.
b = 0.8130841121

Simplifying
b = 0.8130841121

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