3+2(p-1)=12

Solution for 3+2(p-1)=12 equation:

Simplifying
3 + 2(p + -1) = 12

Reorder the terms:
3 + 2(-1 + p) = 12
3 + (-1 * 2 + p * 2) = 12
3 + (-2 + 2p) = 12

Combine like terms: 3 + -2 = 1
1 + 2p = 12

Solving
1 + 2p = 12

Solving for variable 'p'.

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

Add '-1' to each side of the equation.
1 + -1 + 2p = 12 + -1

Combine like terms: 1 + -1 = 0
0 + 2p = 12 + -1
2p = 12 + -1

Combine like terms: 12 + -1 = 11
2p = 11

Divide each side by '2'.
p = 5.5

Simplifying
p = 5.5