(R-3)(r+9)=89

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Solution for (R-3)(r+9)=89 equation:


Simplifying
(R + -3)(r + 9) = 89

Reorder the terms:
(-3 + R)(r + 9) = 89

Reorder the terms:
(-3 + R)(9 + r) = 89

Multiply (-3 + R) * (9 + r)
(-3(9 + r) + R(9 + r)) = 89
((9 * -3 + r * -3) + R(9 + r)) = 89
((-27 + -3r) + R(9 + r)) = 89
(-27 + -3r + (9 * R + r * R)) = 89
(-27 + -3r + (9R + rR)) = 89

Reorder the terms:
(-27 + 9R + -3r + rR) = 89
(-27 + 9R + -3r + rR) = 89

Solving
-27 + 9R + -3r + rR = 89

Solving for variable 'R'.

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

Add '27' to each side of the equation.
-27 + 9R + -3r + 27 + rR = 89 + 27

Reorder the terms:
-27 + 27 + 9R + -3r + rR = 89 + 27

Combine like terms: -27 + 27 = 0
0 + 9R + -3r + rR = 89 + 27
9R + -3r + rR = 89 + 27

Combine like terms: 89 + 27 = 116
9R + -3r + rR = 116

Add '3r' to each side of the equation.
9R + -3r + 3r + rR = 116 + 3r

Combine like terms: -3r + 3r = 0
9R + 0 + rR = 116 + 3r
9R + rR = 116 + 3r

Reorder the terms:
-116 + 9R + -3r + rR = 116 + 3r + -116 + -3r

Reorder the terms:
-116 + 9R + -3r + rR = 116 + -116 + 3r + -3r

Combine like terms: 116 + -116 = 0
-116 + 9R + -3r + rR = 0 + 3r + -3r
-116 + 9R + -3r + rR = 3r + -3r

Combine like terms: 3r + -3r = 0
-116 + 9R + -3r + rR = 0

The solution to this equation could not be determined.

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