4.2+7q-2.6=5.8

Solution for 4.2+7q-2.6=5.8 equation:

Simplifying
4.2 + 7q + -2.6 = 5.8

Reorder the terms:
4.2 + -2.6 + 7q = 5.8

Combine like terms: 4.2 + -2.6 = 1.6
1.6 + 7q = 5.8

Solving
1.6 + 7q = 5.8

Solving for variable 'q'.

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

Add '-1.6' to each side of the equation.
1.6 + -1.6 + 7q = 5.8 + -1.6

Combine like terms: 1.6 + -1.6 = 0.0
0.0 + 7q = 5.8 + -1.6
7q = 5.8 + -1.6

Combine like terms: 5.8 + -1.6 = 4.2
7q = 4.2

Divide each side by '7'.
q = 0.6

Simplifying
q = 0.6