9+3r-3=7r+9-3r

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Solution for 9+3r-3=7r+9-3r equation:


Simplifying
9 + 3r + -3 = 7r + 9 + -3r

Reorder the terms:
9 + -3 + 3r = 7r + 9 + -3r

Combine like terms: 9 + -3 = 6
6 + 3r = 7r + 9 + -3r

Reorder the terms:
6 + 3r = 9 + 7r + -3r

Combine like terms: 7r + -3r = 4r
6 + 3r = 9 + 4r

Solving
6 + 3r = 9 + 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
6 + 3r + -4r = 9 + 4r + -4r

Combine like terms: 3r + -4r = -1r
6 + -1r = 9 + 4r + -4r

Combine like terms: 4r + -4r = 0
6 + -1r = 9 + 0
6 + -1r = 9

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

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

Combine like terms: 9 + -6 = 3
-1r = 3

Divide each side by '-1'.
r = -3

Simplifying
r = -3

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