-5r+10r-9=1

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Solution for -5r+10r-9=1 equation: 


Simplifying
-5r + 10r + -9 = 1

Reorder the terms:
-9 + -5r + 10r = 1

Combine like terms: -5r + 10r = 5r
-9 + 5r = 1

Solving
-9 + 5r = 1

Solving for variable 'r'.

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

Add '9' to each side of the equation.
-9 + 9 + 5r = 1 + 9

Combine like terms: -9 + 9 = 0
0 + 5r = 1 + 9
5r = 1 + 9

Combine like terms: 1 + 9 = 10
5r = 10

Divide each side by '5'.
r = 2

Simplifying
r = 2

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