3.1x+3=2.1x

Solution for 3.1x+3=2.1x equation:

Simplifying
3.1x + 3 = 2.1x

Reorder the terms:
3 + 3.1x = 2.1x

Solving
3 + 3.1x = 2.1x

Solving for variable 'x'.

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

Add '-2.1x' to each side of the equation.
3 + 3.1x + -2.1x = 2.1x + -2.1x

Combine like terms: 3.1x + -2.1x = 1x
3 + 1x = 2.1x + -2.1x

Combine like terms: 2.1x + -2.1x = 0.0
3 + 1x = 0.0

Add '-3' to each side of the equation.
3 + -3 + 1x = 0.0 + -3

Combine like terms: 3 + -3 = 0
0 + 1x = 0.0 + -3
1x = 0.0 + -3

Combine like terms: 0.0 + -3 = -3
1x = -3

Divide each side by '1'.
x = -3

Simplifying
x = -3