-31=8+5(r-3)

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Solution for -31=8+5(r-3) equation:


Simplifying
-31 = 8 + 5(r + -3)

Reorder the terms:
-31 = 8 + 5(-3 + r)
-31 = 8 + (-3 * 5 + r * 5)
-31 = 8 + (-15 + 5r)

Combine like terms: 8 + -15 = -7
-31 = -7 + 5r

Solving
-31 = -7 + 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.
-31 + -5r = -7 + 5r + -5r

Combine like terms: 5r + -5r = 0
-31 + -5r = -7 + 0
-31 + -5r = -7

Add '31' to each side of the equation.
-31 + 31 + -5r = -7 + 31

Combine like terms: -31 + 31 = 0
0 + -5r = -7 + 31
-5r = -7 + 31

Combine like terms: -7 + 31 = 24
-5r = 24

Divide each side by '-5'.
r = -4.8

Simplifying
r = -4.8

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