-16=4r-9r

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Solution for -16=4r-9r equation:


Simplifying
-16 = 4r + -9r

Combine like terms: 4r + -9r = -5r
-16 = -5r

Solving
-16 = -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.
-16 + 5r = -5r + 5r

Combine like terms: -5r + 5r = 0
-16 + 5r = 0

Add '16' to each side of the equation.
-16 + 16 + 5r = 0 + 16

Combine like terms: -16 + 16 = 0
0 + 5r = 0 + 16
5r = 0 + 16

Combine like terms: 0 + 16 = 16
5r = 16

Divide each side by '5'.
r = 3.2

Simplifying
r = 3.2

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