7x+(3+2x)=30

Solution for 7x+(3+2x)=30 equation:

Simplifying
7x + (3 + 2x) = 30

Remove parenthesis around (3 + 2x)
7x + 3 + 2x = 30

Reorder the terms:
3 + 7x + 2x = 30

Combine like terms: 7x + 2x = 9x
3 + 9x = 30

Solving
3 + 9x = 30

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 9x = 30 + -3

Combine like terms: 3 + -3 = 0
0 + 9x = 30 + -3
9x = 30 + -3

Combine like terms: 30 + -3 = 27
9x = 27

Divide each side by '9'.
x = 3

Simplifying
x = 3