3x+6+25x=90

Solution for 3x+6+25x=90 equation:

Simplifying
3x + 6 + 25x = 90

Reorder the terms:
6 + 3x + 25x = 90

Combine like terms: 3x + 25x = 28x
6 + 28x = 90

Solving
6 + 28x = 90

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 + 28x = 90 + -6

Combine like terms: 6 + -6 = 0
0 + 28x = 90 + -6
28x = 90 + -6

Combine like terms: 90 + -6 = 84
28x = 84

Divide each side by '28'.
x = 3

Simplifying
x = 3