5r+r-4r-r+4r=15

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Solution for 5r+r-4r-r+4r=15 equation: 


Simplifying
5r + r + -4r + -1r + 4r = 15

Combine like terms: 5r + r = 6r
6r + -4r + -1r + 4r = 15

Combine like terms: 6r + -4r = 2r
2r + -1r + 4r = 15

Combine like terms: 2r + -1r = 1r
1r + 4r = 15

Combine like terms: 1r + 4r = 5r
5r = 15

Solving
5r = 15

Solving for variable 'r'.

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

Divide each side by '5'.
r = 3

Simplifying
r = 3

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