5r+9-7r=-27

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Solution for 5r+9-7r=-27 equation:


Simplifying
5r + 9 + -7r = -27

Reorder the terms:
9 + 5r + -7r = -27

Combine like terms: 5r + -7r = -2r
9 + -2r = -27

Solving
9 + -2r = -27

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 + -2r = -27 + -9

Combine like terms: 9 + -9 = 0
0 + -2r = -27 + -9
-2r = -27 + -9

Combine like terms: -27 + -9 = -36
-2r = -36

Divide each side by '-2'.
r = 18

Simplifying
r = 18

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