9(r-7)-6r=

Solution for 9(r-7)-6r= equation:

Simplifying
9(r + -7) + -6r = 0

Reorder the terms:
9(-7 + r) + -6r = 0
(-7 * 9 + r * 9) + -6r = 0
(-63 + 9r) + -6r = 0

Combine like terms: 9r + -6r = 3r
-63 + 3r = 0

Solving
-63 + 3r = 0

Solving for variable 'r'.

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

Add '63' to each side of the equation.
-63 + 63 + 3r = 0 + 63

Combine like terms: -63 + 63 = 0
0 + 3r = 0 + 63
3r = 0 + 63

Combine like terms: 0 + 63 = 63
3r = 63

Divide each side by '3'.
r = 21

Simplifying
r = 21