3(7+p)2=300

Solution for 3(7+p)2=300 equation:

Simplifying
3(7 + p) * 2 = 300

Reorder the terms for easier multiplication:
3 * 2(7 + p) = 300

Multiply 3 * 2
6(7 + p) = 300
(7 * 6 + p * 6) = 300
(42 + 6p) = 300

Solving
42 + 6p = 300

Solving for variable 'p'.

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

Add '-42' to each side of the equation.
42 + -42 + 6p = 300 + -42

Combine like terms: 42 + -42 = 0
0 + 6p = 300 + -42
6p = 300 + -42

Combine like terms: 300 + -42 = 258
6p = 258

Divide each side by '6'.
p = 43

Simplifying
p = 43