2.5c+4-1.5c=42

Solution for 2.5c+4-1.5c=42 equation:

Simplifying
2.5c + 4 + -1.5c = 42

Reorder the terms:
4 + 2.5c + -1.5c = 42

Combine like terms: 2.5c + -1.5c = 1c
4 + 1c = 42

Solving
4 + 1c = 42

Solving for variable 'c'.

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

Add '-4' to each side of the equation.
4 + -4 + 1c = 42 + -4

Combine like terms: 4 + -4 = 0
0 + 1c = 42 + -4
1c = 42 + -4

Combine like terms: 42 + -4 = 38
1c = 38

Divide each side by '1'.
c = 38

Simplifying
c = 38