(X+7)(x-9)=0

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Solution for (X+7)(x-9)=0 equation:


Simplifying
(X + 7)(x + -9) = 0

Reorder the terms:
(7 + X)(x + -9) = 0

Reorder the terms:
(7 + X)(-9 + x) = 0

Multiply (7 + X) * (-9 + x)
(7(-9 + x) + X(-9 + x)) = 0
((-9 * 7 + x * 7) + X(-9 + x)) = 0
((-63 + 7x) + X(-9 + x)) = 0
(-63 + 7x + (-9 * X + x * X)) = 0
(-63 + 7x + (-9X + xX)) = 0

Reorder the terms:
(-63 + -9X + 7x + xX) = 0
(-63 + -9X + 7x + xX) = 0

Solving
-63 + -9X + 7x + xX = 0

Solving for variable 'X'.

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

Add '63' to each side of the equation.
-63 + -9X + 7x + 63 + xX = 0 + 63

Reorder the terms:
-63 + 63 + -9X + 7x + xX = 0 + 63

Combine like terms: -63 + 63 = 0
0 + -9X + 7x + xX = 0 + 63
-9X + 7x + xX = 0 + 63

Combine like terms: 0 + 63 = 63
-9X + 7x + xX = 63

Add '-7x' to each side of the equation.
-9X + 7x + -7x + xX = 63 + -7x

Combine like terms: 7x + -7x = 0
-9X + 0 + xX = 63 + -7x
-9X + xX = 63 + -7x

Reorder the terms:
-63 + -9X + 7x + xX = 63 + -7x + -63 + 7x

Reorder the terms:
-63 + -9X + 7x + xX = 63 + -63 + -7x + 7x

Combine like terms: 63 + -63 = 0
-63 + -9X + 7x + xX = 0 + -7x + 7x
-63 + -9X + 7x + xX = -7x + 7x

Combine like terms: -7x + 7x = 0
-63 + -9X + 7x + xX = 0

The solution to this equation could not be determined.

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