-7(8b-3)=189

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Solution for -7(8b-3)=189 equation:


Simplifying
-7(8b + -3) = 189

Reorder the terms:
-7(-3 + 8b) = 189
(-3 * -7 + 8b * -7) = 189
(21 + -56b) = 189

Solving
21 + -56b = 189

Solving for variable 'b'.

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

Add '-21' to each side of the equation.
21 + -21 + -56b = 189 + -21

Combine like terms: 21 + -21 = 0
0 + -56b = 189 + -21
-56b = 189 + -21

Combine like terms: 189 + -21 = 168
-56b = 168

Divide each side by '-56'.
b = -3

Simplifying
b = -3

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