-1=3-3t+2r

Solution for -1=3-3t+2r equation:

Simplifying
-1 = 3 + -3t + 2r

Reorder the terms:
-1 = 3 + 2r + -3t

Solving
-1 = 3 + 2r + -3t

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
-1 + -2r = 3 + 2r + -2r + -3t

Combine like terms: 2r + -2r = 0
-1 + -2r = 3 + 0 + -3t
-1 + -2r = 3 + -3t

Add '1' to each side of the equation.
-1 + 1 + -2r = 3 + 1 + -3t

Combine like terms: -1 + 1 = 0
0 + -2r = 3 + 1 + -3t
-2r = 3 + 1 + -3t

Combine like terms: 3 + 1 = 4
-2r = 4 + -3t

Divide each side by '-2'.
r = -2 + 1.5t

Simplifying
r = -2 + 1.5t