(X-2)(x+9)=80

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Solution for (X-2)(x+9)=80 equation:


Simplifying
(X + -2)(x + 9) = 80

Reorder the terms:
(-2 + X)(x + 9) = 80

Reorder the terms:
(-2 + X)(9 + x) = 80

Multiply (-2 + X) * (9 + x)
(-2(9 + x) + X(9 + x)) = 80
((9 * -2 + x * -2) + X(9 + x)) = 80
((-18 + -2x) + X(9 + x)) = 80
(-18 + -2x + (9 * X + x * X)) = 80
(-18 + -2x + (9X + xX)) = 80

Reorder the terms:
(-18 + 9X + -2x + xX) = 80
(-18 + 9X + -2x + xX) = 80

Solving
-18 + 9X + -2x + xX = 80

Solving for variable 'X'.

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

Add '18' to each side of the equation.
-18 + 9X + -2x + 18 + xX = 80 + 18

Reorder the terms:
-18 + 18 + 9X + -2x + xX = 80 + 18

Combine like terms: -18 + 18 = 0
0 + 9X + -2x + xX = 80 + 18
9X + -2x + xX = 80 + 18

Combine like terms: 80 + 18 = 98
9X + -2x + xX = 98

Add '2x' to each side of the equation.
9X + -2x + 2x + xX = 98 + 2x

Combine like terms: -2x + 2x = 0
9X + 0 + xX = 98 + 2x
9X + xX = 98 + 2x

Reorder the terms:
-98 + 9X + -2x + xX = 98 + 2x + -98 + -2x

Reorder the terms:
-98 + 9X + -2x + xX = 98 + -98 + 2x + -2x

Combine like terms: 98 + -98 = 0
-98 + 9X + -2x + xX = 0 + 2x + -2x
-98 + 9X + -2x + xX = 2x + -2x

Combine like terms: 2x + -2x = 0
-98 + 9X + -2x + xX = 0

The solution to this equation could not be determined.

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