2.1x+5-1.6=10

Solution for 2.1x+5-1.6=10 equation:

Simplifying
2.1x + 5 + -1.6 = 10

Reorder the terms:
5 + -1.6 + 2.1x = 10

Combine like terms: 5 + -1.6 = 3.4
3.4 + 2.1x = 10

Solving
3.4 + 2.1x = 10

Solving for variable 'x'.

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

Add '-3.4' to each side of the equation.
3.4 + -3.4 + 2.1x = 10 + -3.4

Combine like terms: 3.4 + -3.4 = 0.0
0.0 + 2.1x = 10 + -3.4
2.1x = 10 + -3.4

Combine like terms: 10 + -3.4 = 6.6
2.1x = 6.6

Divide each side by '2.1'.
x = 3.142857143

Simplifying
x = 3.142857143