-8(-5-7b)=320

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Solution for -8(-5-7b)=320 equation: 


Simplifying
-8(-5 + -7b) = 320
(-5 * -8 + -7b * -8) = 320
(40 + 56b) = 320

Solving
40 + 56b = 320

Solving for variable 'b'.

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

Add '-40' to each side of the equation.
40 + -40 + 56b = 320 + -40

Combine like terms: 40 + -40 = 0
0 + 56b = 320 + -40
56b = 320 + -40

Combine like terms: 320 + -40 = 280
56b = 280

Divide each side by '56'.
b = 5

Simplifying
b = 5

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