-5(7r+5)=31-7r

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Solution for -5(7r+5)=31-7r equation:


Simplifying
-5(7r + 5) = 31 + -7r

Reorder the terms:
-5(5 + 7r) = 31 + -7r
(5 * -5 + 7r * -5) = 31 + -7r
(-25 + -35r) = 31 + -7r

Solving
-25 + -35r = 31 + -7r

Solving for variable 'r'.

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

Add '7r' to each side of the equation.
-25 + -35r + 7r = 31 + -7r + 7r

Combine like terms: -35r + 7r = -28r
-25 + -28r = 31 + -7r + 7r

Combine like terms: -7r + 7r = 0
-25 + -28r = 31 + 0
-25 + -28r = 31

Add '25' to each side of the equation.
-25 + 25 + -28r = 31 + 25

Combine like terms: -25 + 25 = 0
0 + -28r = 31 + 25
-28r = 31 + 25

Combine like terms: 31 + 25 = 56
-28r = 56

Divide each side by '-28'.
r = -2

Simplifying
r = -2

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