5r-9=10+8-4r

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Solution for 5r-9=10+8-4r equation:


Simplifying
5r + -9 = 10 + 8 + -4r

Reorder the terms:
-9 + 5r = 10 + 8 + -4r

Combine like terms: 10 + 8 = 18
-9 + 5r = 18 + -4r

Solving
-9 + 5r = 18 + -4r

Solving for variable 'r'.

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

Add '4r' to each side of the equation.
-9 + 5r + 4r = 18 + -4r + 4r

Combine like terms: 5r + 4r = 9r
-9 + 9r = 18 + -4r + 4r

Combine like terms: -4r + 4r = 0
-9 + 9r = 18 + 0
-9 + 9r = 18

Add '9' to each side of the equation.
-9 + 9 + 9r = 18 + 9

Combine like terms: -9 + 9 = 0
0 + 9r = 18 + 9
9r = 18 + 9

Combine like terms: 18 + 9 = 27
9r = 27

Divide each side by '9'.
r = 3

Simplifying
r = 3

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