2.1x-6+1.6x=12.5

Solution for 2.1x-6+1.6x=12.5 equation:

Simplifying
2.1x + -6 + 1.6x = 12.5

Reorder the terms:
-6 + 2.1x + 1.6x = 12.5

Combine like terms: 2.1x + 1.6x = 3.7x
-6 + 3.7x = 12.5

Solving
-6 + 3.7x = 12.5

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 + 3.7x = 12.5 + 6

Combine like terms: -6 + 6 = 0
0 + 3.7x = 12.5 + 6
3.7x = 12.5 + 6

Combine like terms: 12.5 + 6 = 18.5
3.7x = 18.5

Divide each side by '3.7'.
x = 5

Simplifying
x = 5