7-(2b)=12

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Solution for 7-(2b)=12 equation:


Simplifying
7 + -1(2b) = 12

Remove parenthesis around (2b)
7 + -1 * 2b = 12

Multiply -1 * 2
7 + -2b = 12

Solving
7 + -2b = 12

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 + -2b = 12 + -7

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

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

Divide each side by '-2'.
b = -2.5

Simplifying
b = -2.5

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