-9=-5r-4r

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Solution for -9=-5r-4r equation:


Simplifying
-9 = -5r + -4r

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

Solving
-9 = -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.
-9 + 9r = -9r + 9r

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

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

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

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

Divide each side by '9'.
r = 1

Simplifying
r = 1

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