3-3(3-r)=8+r

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Solution for 3-3(3-r)=8+r equation:


Simplifying
3 + -3(3 + -1r) = 8 + r
3 + (3 * -3 + -1r * -3) = 8 + r
3 + (-9 + 3r) = 8 + r

Combine like terms: 3 + -9 = -6
-6 + 3r = 8 + r

Solving
-6 + 3r = 8 + 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.
-6 + 3r + -1r = 8 + r + -1r

Combine like terms: 3r + -1r = 2r
-6 + 2r = 8 + r + -1r

Combine like terms: r + -1r = 0
-6 + 2r = 8 + 0
-6 + 2r = 8

Add '6' to each side of the equation.
-6 + 6 + 2r = 8 + 6

Combine like terms: -6 + 6 = 0
0 + 2r = 8 + 6
2r = 8 + 6

Combine like terms: 8 + 6 = 14
2r = 14

Divide each side by '2'.
r = 7

Simplifying
r = 7

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