3.4a+3=2a-a

Solution for 3.4a+3=2a-a equation:

Simplifying
3.4a + 3 = 2a + -1a

Reorder the terms:
3 + 3.4a = 2a + -1a

Combine like terms: 2a + -1a = 1a
3 + 3.4a = 1a

Solving
3 + 3.4a = 1a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
3 + 3.4a + -1a = 1a + -1a

Combine like terms: 3.4a + -1a = 2.4a
3 + 2.4a = 1a + -1a

Combine like terms: 1a + -1a = 0
3 + 2.4a = 0

Add '-3' to each side of the equation.
3 + -3 + 2.4a = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 2.4a = 0 + -3
2.4a = 0 + -3

Combine like terms: 0 + -3 = -3
2.4a = -3

Divide each side by '2.4'.
a = -1.25

Simplifying
a = -1.25