2.5q-4.2-3.4q=-1.9q-1.6

Solution for 2.5q-4.2-3.4q=-1.9q-1.6 equation:

Simplifying
2.5q + -4.2 + -3.4q = -1.9q + -1.6

Reorder the terms:
-4.2 + 2.5q + -3.4q = -1.9q + -1.6

Combine like terms: 2.5q + -3.4q = -0.9q
-4.2 + -0.9q = -1.9q + -1.6

Reorder the terms:
-4.2 + -0.9q = -1.6 + -1.9q

Solving
-4.2 + -0.9q = -1.6 + -1.9q

Solving for variable 'q'.

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

Add '1.9q' to each side of the equation.
-4.2 + -0.9q + 1.9q = -1.6 + -1.9q + 1.9q

Combine like terms: -0.9q + 1.9q = 1q
-4.2 + 1q = -1.6 + -1.9q + 1.9q

Combine like terms: -1.9q + 1.9q = 0.0
-4.2 + 1q = -1.6 + 0.0
-4.2 + 1q = -1.6

Add '4.2' to each side of the equation.
-4.2 + 4.2 + 1q = -1.6 + 4.2

Combine like terms: -4.2 + 4.2 = 0.0
0.0 + 1q = -1.6 + 4.2
1q = -1.6 + 4.2

Combine like terms: -1.6 + 4.2 = 2.6
1q = 2.6

Divide each side by '1'.
q = 2.6

Simplifying
q = 2.6