(7b-2)-5(7b+8)=-56

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Solution for (7b-2)-5(7b+8)=-56 equation:


Simplifying
(7b + -2) + -5(7b + 8) = -56

Reorder the terms:
(-2 + 7b) + -5(7b + 8) = -56

Remove parenthesis around (-2 + 7b)
-2 + 7b + -5(7b + 8) = -56

Reorder the terms:
-2 + 7b + -5(8 + 7b) = -56
-2 + 7b + (8 * -5 + 7b * -5) = -56
-2 + 7b + (-40 + -35b) = -56

Reorder the terms:
-2 + -40 + 7b + -35b = -56

Combine like terms: -2 + -40 = -42
-42 + 7b + -35b = -56

Combine like terms: 7b + -35b = -28b
-42 + -28b = -56

Solving
-42 + -28b = -56

Solving for variable 'b'.

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

Add '42' to each side of the equation.
-42 + 42 + -28b = -56 + 42

Combine like terms: -42 + 42 = 0
0 + -28b = -56 + 42
-28b = -56 + 42

Combine like terms: -56 + 42 = -14
-28b = -14

Divide each side by '-28'.
b = 0.5

Simplifying
b = 0.5

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