-4=5r+4r

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


Simplifying
-4 = 5r + 4r

Combine like terms: 5r + 4r = 9r
-4 = 9r

Solving
-4 = 9r

Solving for variable 'r'.

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

Add '-9r' to each side of the equation.
-4 + -9r = 9r + -9r

Combine like terms: 9r + -9r = 0
-4 + -9r = 0

Add '4' to each side of the equation.
-4 + 4 + -9r = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -9r = 0 + 4
-9r = 0 + 4

Combine like terms: 0 + 4 = 4
-9r = 4

Divide each side by '-9'.
r = -0.4444444444

Simplifying
r = -0.4444444444

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