-4(2-5b)-5(-2b-3)=

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Solution for -4(2-5b)-5(-2b-3)= equation:


Simplifying
-4(2 + -5b) + -5(-2b + -3) = 0
(2 * -4 + -5b * -4) + -5(-2b + -3) = 0
(-8 + 20b) + -5(-2b + -3) = 0

Reorder the terms:
-8 + 20b + -5(-3 + -2b) = 0
-8 + 20b + (-3 * -5 + -2b * -5) = 0
-8 + 20b + (15 + 10b) = 0

Reorder the terms:
-8 + 15 + 20b + 10b = 0

Combine like terms: -8 + 15 = 7
7 + 20b + 10b = 0

Combine like terms: 20b + 10b = 30b
7 + 30b = 0

Solving
7 + 30b = 0

Solving for variable 'b'.

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

Add '-7' to each side of the equation.
7 + -7 + 30b = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 30b = 0 + -7
30b = 0 + -7

Combine like terms: 0 + -7 = -7
30b = -7

Divide each side by '30'.
b = -0.2333333333

Simplifying
b = -0.2333333333

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