-3(2b+6)+2b=20

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Solution for -3(2b+6)+2b=20 equation:


Simplifying
-3(2b + 6) + 2b = 20

Reorder the terms:
-3(6 + 2b) + 2b = 20
(6 * -3 + 2b * -3) + 2b = 20
(-18 + -6b) + 2b = 20

Combine like terms: -6b + 2b = -4b
-18 + -4b = 20

Solving
-18 + -4b = 20

Solving for variable 'b'.

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

Add '18' to each side of the equation.
-18 + 18 + -4b = 20 + 18

Combine like terms: -18 + 18 = 0
0 + -4b = 20 + 18
-4b = 20 + 18

Combine like terms: 20 + 18 = 38
-4b = 38

Divide each side by '-4'.
b = -9.5

Simplifying
b = -9.5

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