8=2-5r-4

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Solution for 8=2-5r-4 equation:


Simplifying
8 = 2 + -5r + -4

Reorder the terms:
8 = 2 + -4 + -5r

Combine like terms: 2 + -4 = -2
8 = -2 + -5r

Solving
8 = -2 + -5r

Solving for variable 'r'.

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

Add '5r' to each side of the equation.
8 + 5r = -2 + -5r + 5r

Combine like terms: -5r + 5r = 0
8 + 5r = -2 + 0
8 + 5r = -2

Add '-8' to each side of the equation.
8 + -8 + 5r = -2 + -8

Combine like terms: 8 + -8 = 0
0 + 5r = -2 + -8
5r = -2 + -8

Combine like terms: -2 + -8 = -10
5r = -10

Divide each side by '5'.
r = -2

Simplifying
r = -2

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