2.1x-10.78=3.5

Solution for 2.1x-10.78=3.5 equation:

Simplifying
2.1x + -10.78 = 3.5

Reorder the terms:
-10.78 + 2.1x = 3.5

Solving
-10.78 + 2.1x = 3.5

Solving for variable 'x'.

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

Add '10.78' to each side of the equation.
-10.78 + 10.78 + 2.1x = 3.5 + 10.78

Combine like terms: -10.78 + 10.78 = 0.00
0.00 + 2.1x = 3.5 + 10.78
2.1x = 3.5 + 10.78

Combine like terms: 3.5 + 10.78 = 14.28
2.1x = 14.28

Divide each side by '2.1'.
x = 6.8

Simplifying
x = 6.8