(28b-2)-9(3b+3)=-7

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Solution for (28b-2)-9(3b+3)=-7 equation:


Simplifying
(28b + -2) + -9(3b + 3) = -7

Reorder the terms:
(-2 + 28b) + -9(3b + 3) = -7

Remove parenthesis around (-2 + 28b)
-2 + 28b + -9(3b + 3) = -7

Reorder the terms:
-2 + 28b + -9(3 + 3b) = -7
-2 + 28b + (3 * -9 + 3b * -9) = -7
-2 + 28b + (-27 + -27b) = -7

Reorder the terms:
-2 + -27 + 28b + -27b = -7

Combine like terms: -2 + -27 = -29
-29 + 28b + -27b = -7

Combine like terms: 28b + -27b = 1b
-29 + 1b = -7

Solving
-29 + 1b = -7

Solving for variable 'b'.

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

Add '29' to each side of the equation.
-29 + 29 + 1b = -7 + 29

Combine like terms: -29 + 29 = 0
0 + 1b = -7 + 29
1b = -7 + 29

Combine like terms: -7 + 29 = 22
1b = 22

Divide each side by '1'.
b = 22

Simplifying
b = 22

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