20b-20+12b=-6(-7b-20)+20

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Solution for 20b-20+12b=-6(-7b-20)+20 equation:


Simplifying
20b + -20 + 12b = -6(-7b + -20) + 20

Reorder the terms:
-20 + 20b + 12b = -6(-7b + -20) + 20

Combine like terms: 20b + 12b = 32b
-20 + 32b = -6(-7b + -20) + 20

Reorder the terms:
-20 + 32b = -6(-20 + -7b) + 20
-20 + 32b = (-20 * -6 + -7b * -6) + 20
-20 + 32b = (120 + 42b) + 20

Reorder the terms:
-20 + 32b = 120 + 20 + 42b

Combine like terms: 120 + 20 = 140
-20 + 32b = 140 + 42b

Solving
-20 + 32b = 140 + 42b

Solving for variable 'b'.

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

Add '-42b' to each side of the equation.
-20 + 32b + -42b = 140 + 42b + -42b

Combine like terms: 32b + -42b = -10b
-20 + -10b = 140 + 42b + -42b

Combine like terms: 42b + -42b = 0
-20 + -10b = 140 + 0
-20 + -10b = 140

Add '20' to each side of the equation.
-20 + 20 + -10b = 140 + 20

Combine like terms: -20 + 20 = 0
0 + -10b = 140 + 20
-10b = 140 + 20

Combine like terms: 140 + 20 = 160
-10b = 160

Divide each side by '-10'.
b = -16

Simplifying
b = -16

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