-2(5+3b)-2(6b-7)=40

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Solution for -2(5+3b)-2(6b-7)=40 equation:


Simplifying
-2(5 + 3b) + -2(6b + -7) = 40
(5 * -2 + 3b * -2) + -2(6b + -7) = 40
(-10 + -6b) + -2(6b + -7) = 40

Reorder the terms:
-10 + -6b + -2(-7 + 6b) = 40
-10 + -6b + (-7 * -2 + 6b * -2) = 40
-10 + -6b + (14 + -12b) = 40

Reorder the terms:
-10 + 14 + -6b + -12b = 40

Combine like terms: -10 + 14 = 4
4 + -6b + -12b = 40

Combine like terms: -6b + -12b = -18b
4 + -18b = 40

Solving
4 + -18b = 40

Solving for variable 'b'.

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

Add '-4' to each side of the equation.
4 + -4 + -18b = 40 + -4

Combine like terms: 4 + -4 = 0
0 + -18b = 40 + -4
-18b = 40 + -4

Combine like terms: 40 + -4 = 36
-18b = 36

Divide each side by '-18'.
b = -2

Simplifying
b = -2

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