-103=7(b-1)+5b

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Solution for -103=7(b-1)+5b equation:


Simplifying
-103 = 7(b + -1) + 5b

Reorder the terms:
-103 = 7(-1 + b) + 5b
-103 = (-1 * 7 + b * 7) + 5b
-103 = (-7 + 7b) + 5b

Combine like terms: 7b + 5b = 12b
-103 = -7 + 12b

Solving
-103 = -7 + 12b

Solving for variable 'b'.

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

Add '-12b' to each side of the equation.
-103 + -12b = -7 + 12b + -12b

Combine like terms: 12b + -12b = 0
-103 + -12b = -7 + 0
-103 + -12b = -7

Add '103' to each side of the equation.
-103 + 103 + -12b = -7 + 103

Combine like terms: -103 + 103 = 0
0 + -12b = -7 + 103
-12b = -7 + 103

Combine like terms: -7 + 103 = 96
-12b = 96

Divide each side by '-12'.
b = -8

Simplifying
b = -8

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