20b-3(b-4)=-209

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Solution for 20b-3(b-4)=-209 equation:


Simplifying
20b + -3(b + -4) = -209

Reorder the terms:
20b + -3(-4 + b) = -209
20b + (-4 * -3 + b * -3) = -209
20b + (12 + -3b) = -209

Reorder the terms:
12 + 20b + -3b = -209

Combine like terms: 20b + -3b = 17b
12 + 17b = -209

Solving
12 + 17b = -209

Solving for variable 'b'.

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

Add '-12' to each side of the equation.
12 + -12 + 17b = -209 + -12

Combine like terms: 12 + -12 = 0
0 + 17b = -209 + -12
17b = -209 + -12

Combine like terms: -209 + -12 = -221
17b = -221

Divide each side by '17'.
b = -13

Simplifying
b = -13

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