7r-4=-20+5r

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Solution for 7r-4=-20+5r equation:


Simplifying
7r + -4 = -20 + 5r

Reorder the terms:
-4 + 7r = -20 + 5r

Solving
-4 + 7r = -20 + 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.
-4 + 7r + -5r = -20 + 5r + -5r

Combine like terms: 7r + -5r = 2r
-4 + 2r = -20 + 5r + -5r

Combine like terms: 5r + -5r = 0
-4 + 2r = -20 + 0
-4 + 2r = -20

Add '4' to each side of the equation.
-4 + 4 + 2r = -20 + 4

Combine like terms: -4 + 4 = 0
0 + 2r = -20 + 4
2r = -20 + 4

Combine like terms: -20 + 4 = -16
2r = -16

Divide each side by '2'.
r = -8

Simplifying
r = -8

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