-4r-28=-78-r

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Solution for -4r-28=-78-r equation:


Simplifying
-4r + -28 = -78 + -1r

Reorder the terms:
-28 + -4r = -78 + -1r

Solving
-28 + -4r = -78 + -1r

Solving for variable 'r'.

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

Add 'r' to each side of the equation.
-28 + -4r + r = -78 + -1r + r

Combine like terms: -4r + r = -3r
-28 + -3r = -78 + -1r + r

Combine like terms: -1r + r = 0
-28 + -3r = -78 + 0
-28 + -3r = -78

Add '28' to each side of the equation.
-28 + 28 + -3r = -78 + 28

Combine like terms: -28 + 28 = 0
0 + -3r = -78 + 28
-3r = -78 + 28

Combine like terms: -78 + 28 = -50
-3r = -50

Divide each side by '-3'.
r = 16.66666667

Simplifying
r = 16.66666667

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