.6=r+4.2

Solution for .6=r+4.2 equation:

Simplifying
0.6 = r + 4.2

Reorder the terms:
0.6 = 4.2 + r

Solving
0.6 = 4.2 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
0.6 + -1r = 4.2 + r + -1r

Combine like terms: r + -1r = 0
0.6 + -1r = 4.2 + 0
0.6 + -1r = 4.2

Add '-0.6' to each side of the equation.
0.6 + -0.6 + -1r = 4.2 + -0.6

Combine like terms: 0.6 + -0.6 = 0.0
0.0 + -1r = 4.2 + -0.6
-1r = 4.2 + -0.6

Combine like terms: 4.2 + -0.6 = 3.6
-1r = 3.6

Divide each side by '-1'.
r = -3.6

Simplifying
r = -3.6