(9b-7)-2(4b+1)=-3

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Solution for (9b-7)-2(4b+1)=-3 equation:


Simplifying
(9b + -7) + -2(4b + 1) = -3

Reorder the terms:
(-7 + 9b) + -2(4b + 1) = -3

Remove parenthesis around (-7 + 9b)
-7 + 9b + -2(4b + 1) = -3

Reorder the terms:
-7 + 9b + -2(1 + 4b) = -3
-7 + 9b + (1 * -2 + 4b * -2) = -3
-7 + 9b + (-2 + -8b) = -3

Reorder the terms:
-7 + -2 + 9b + -8b = -3

Combine like terms: -7 + -2 = -9
-9 + 9b + -8b = -3

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

Solving
-9 + 1b = -3

Solving for variable 'b'.

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

Add '9' to each side of the equation.
-9 + 9 + 1b = -3 + 9

Combine like terms: -9 + 9 = 0
0 + 1b = -3 + 9
1b = -3 + 9

Combine like terms: -3 + 9 = 6
1b = 6

Divide each side by '1'.
b = 6

Simplifying
b = 6

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