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

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


Simplifying
-8(-5b + 7) * 5b = 0

Reorder the terms:
-8(7 + -5b) * 5b = 0

Reorder the terms for easier multiplication:
-8 * 5b(7 + -5b) = 0

Multiply -8 * 5
-40b(7 + -5b) = 0
(7 * -40b + -5b * -40b) = 0
(-280b + 200b2) = 0

Solving
-280b + 200b2 = 0

Solving for variable 'b'.

Factor out the Greatest Common Factor (GCF), '40b'.
40b(-7 + 5b) = 0

Ignore the factor 40.

Subproblem 1
Set the factor 'b' equal to zero and attempt to solve:

Simplifying
b = 0

Solving
b = 0

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

Simplifying
b = 0

Subproblem 2
Set the factor '(-7 + 5b)' equal to zero and attempt to solve:

Simplifying
-7 + 5b = 0

Solving
-7 + 5b = 0

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

Add '7' to each side of the equation.
-7 + 7 + 5b = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 5b = 0 + 7
5b = 0 + 7

Combine like terms: 0 + 7 = 7
5b = 7

Divide each side by '5'.
b = 1.4

Simplifying
b = 1.4
Solution
b = {0, 1.4}

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