(9b-3)-4(2b+1)=-3

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Solution for (9b-3)-4(2b+1)=-3 equation: 


Simplifying
(9b + -3) + -4(2b + 1) = -3

Reorder the terms:
(-3 + 9b) + -4(2b + 1) = -3

Remove parenthesis around (-3 + 9b)
-3 + 9b + -4(2b + 1) = -3

Reorder the terms:
-3 + 9b + -4(1 + 2b) = -3
-3 + 9b + (1 * -4 + 2b * -4) = -3
-3 + 9b + (-4 + -8b) = -3

Reorder the terms:
-3 + -4 + 9b + -8b = -3

Combine like terms: -3 + -4 = -7
-7 + 9b + -8b = -3

Combine like terms: 9b + -8b = 1b
-7 + 1b = -3

Solving
-7 + 1b = -3

Solving for variable 'b'.

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

Add '7' to each side of the equation.
-7 + 7 + 1b = -3 + 7

Combine like terms: -7 + 7 = 0
0 + 1b = -3 + 7
1b = -3 + 7

Combine like terms: -3 + 7 = 4
1b = 4

Divide each side by '1'.
b = 4

Simplifying
b = 4

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