7r-9=-63+r

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Solution for 7r-9=-63+r equation:


Simplifying
7r + -9 = -63 + r

Reorder the terms:
-9 + 7r = -63 + r

Solving
-9 + 7r = -63 + 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 + 7r + -1r = -63 + r + -1r

Combine like terms: 7r + -1r = 6r
-9 + 6r = -63 + r + -1r

Combine like terms: r + -1r = 0
-9 + 6r = -63 + 0
-9 + 6r = -63

Add '9' to each side of the equation.
-9 + 9 + 6r = -63 + 9

Combine like terms: -9 + 9 = 0
0 + 6r = -63 + 9
6r = -63 + 9

Combine like terms: -63 + 9 = -54
6r = -54

Divide each side by '6'.
r = -9

Simplifying
r = -9

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