9=5-r

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Solution for 9=5-r equation:


Simplifying
9 = 5 + -1r

Solving
9 = 5 + -1r

Solving for variable 'r'.

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

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

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

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

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

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

Simplifying
r = -4

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