-7b*(-3b)=-10b

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Solution for -7b*(-3b)=-10b equation:


Simplifying
-7b(-3b) = -10b

Remove parenthesis around (-3b)
-7b * -3b = -10b

Reorder the terms for easier multiplication:
-7 * -3b * b = -10b

Multiply -7 * -3
21b * b = -10b

Multiply b * b
21b2 = -10b

Solving
21b2 = -10b

Solving for variable 'b'.

Reorder the terms:
10b + 21b2 = -10b + 10b

Combine like terms: -10b + 10b = 0
10b + 21b2 = 0

Factor out the Greatest Common Factor (GCF), 'b'.
b(10 + 21b) = 0

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 '(10 + 21b)' equal to zero and attempt to solve: Simplifying 10 + 21b = 0 Solving 10 + 21b = 0 Move all terms containing b to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + 21b = 0 + -10 Combine like terms: 10 + -10 = 0 0 + 21b = 0 + -10 21b = 0 + -10 Combine like terms: 0 + -10 = -10 21b = -10 Divide each side by '21'. b = -0.4761904762 Simplifying b = -0.4761904762

Solution

b = {0, -0.4761904762}

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