4r-20=-5+7r

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


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

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

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

Combine like terms: 4r + -7r = -3r
-20 + -3r = -5 + 7r + -7r

Combine like terms: 7r + -7r = 0
-20 + -3r = -5 + 0
-20 + -3r = -5

Add '20' to each side of the equation.
-20 + 20 + -3r = -5 + 20

Combine like terms: -20 + 20 = 0
0 + -3r = -5 + 20
-3r = -5 + 20

Combine like terms: -5 + 20 = 15
-3r = 15

Divide each side by '-3'.
r = -5

Simplifying
r = -5

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