-2=4r+t

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Solution for -2=4r+t equation:


Simplifying
-2 = 4r + t

Solving
-2 = 4r + t

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
-2 + -4r = 4r + -4r + t

Combine like terms: 4r + -4r = 0
-2 + -4r = 0 + t
-2 + -4r = t

Add '2' to each side of the equation.
-2 + 2 + -4r = 2 + t

Combine like terms: -2 + 2 = 0
0 + -4r = 2 + t
-4r = 2 + t

Divide each side by '-4'.
r = -0.5 + -0.25t

Simplifying
r = -0.5 + -0.25t

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