-4=r-8

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Solution for -4=r-8 equation:


Simplifying
-4 = r + -8

Reorder the terms:
-4 = -8 + r

Solving
-4 = -8 + 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.
-4 + -1r = -8 + r + -1r

Combine like terms: r + -1r = 0
-4 + -1r = -8 + 0
-4 + -1r = -8

Add '4' to each side of the equation.
-4 + 4 + -1r = -8 + 4

Combine like terms: -4 + 4 = 0
0 + -1r = -8 + 4
-1r = -8 + 4

Combine like terms: -8 + 4 = -4
-1r = -4

Divide each side by '-1'.
r = 4

Simplifying
r = 4

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