-79=2(b-5)+7(1-3b)

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Solution for -79=2(b-5)+7(1-3b) equation:


Simplifying
-79 = 2(b + -5) + 7(1 + -3b)

Reorder the terms:
-79 = 2(-5 + b) + 7(1 + -3b)
-79 = (-5 * 2 + b * 2) + 7(1 + -3b)
-79 = (-10 + 2b) + 7(1 + -3b)
-79 = -10 + 2b + (1 * 7 + -3b * 7)
-79 = -10 + 2b + (7 + -21b)

Reorder the terms:
-79 = -10 + 7 + 2b + -21b

Combine like terms: -10 + 7 = -3
-79 = -3 + 2b + -21b

Combine like terms: 2b + -21b = -19b
-79 = -3 + -19b

Solving
-79 = -3 + -19b

Solving for variable 'b'.

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

Add '19b' to each side of the equation.
-79 + 19b = -3 + -19b + 19b

Combine like terms: -19b + 19b = 0
-79 + 19b = -3 + 0
-79 + 19b = -3

Add '79' to each side of the equation.
-79 + 79 + 19b = -3 + 79

Combine like terms: -79 + 79 = 0
0 + 19b = -3 + 79
19b = -3 + 79

Combine like terms: -3 + 79 = 76
19b = 76

Divide each side by '19'.
b = 4

Simplifying
b = 4

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