12b-[5+2b]-7=

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Solution for 12b-[5+2b]-7= equation:


Simplifying
12b + -1[5 + 2b] + -7 = 0
12b + [5 * -1 + 2b * -1] + -7 = 0
12b + [-5 + -2b] + -7 = 0

Reorder the terms:
-5 + -7 + 12b + -2b = 0

Combine like terms: -5 + -7 = -12
-12 + 12b + -2b = 0

Combine like terms: 12b + -2b = 10b
-12 + 10b = 0

Solving
-12 + 10b = 0

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 + 10b = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 10b = 0 + 12
10b = 0 + 12

Combine like terms: 0 + 12 = 12
10b = 12

Divide each side by '10'.
b = 1.2

Simplifying
b = 1.2

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