X(3.50+5.50)+6=51

Solution for X(3.50+5.50)+6=51 equation:

Simplifying
X(3.50 + 5.50) + 6 = 51

Combine like terms: 3.50 + 5.50 = 9
X(9) + 6 = 51

Reorder the terms for easier multiplication:
9X + 6 = 51

Reorder the terms:
6 + 9X = 51

Solving
6 + 9X = 51

Solving for variable 'X'.

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

Add '-6' to each side of the equation.
6 + -6 + 9X = 51 + -6

Combine like terms: 6 + -6 = 0
0 + 9X = 51 + -6
9X = 51 + -6

Combine like terms: 51 + -6 = 45
9X = 45

Divide each side by '9'.
X = 5

Simplifying
X = 5