-9=6+r

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Solution for -9=6+r equation:


Simplifying
-9 = 6 + r

Solving
-9 = 6 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
-9 + -1r = 6 + r + -1r

Combine like terms: r + -1r = 0
-9 + -1r = 6 + 0
-9 + -1r = 6

Add '9' to each side of the equation.
-9 + 9 + -1r = 6 + 9

Combine like terms: -9 + 9 = 0
0 + -1r = 6 + 9
-1r = 6 + 9

Combine like terms: 6 + 9 = 15
-1r = 15

Divide each side by '-1'.
r = -15

Simplifying
r = -15

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