(X+3)(x-4)=78

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Solution for (X+3)(x-4)=78 equation:


Simplifying
(X + 3)(x + -4) = 78

Reorder the terms:
(3 + X)(x + -4) = 78

Reorder the terms:
(3 + X)(-4 + x) = 78

Multiply (3 + X) * (-4 + x)
(3(-4 + x) + X(-4 + x)) = 78
((-4 * 3 + x * 3) + X(-4 + x)) = 78
((-12 + 3x) + X(-4 + x)) = 78
(-12 + 3x + (-4 * X + x * X)) = 78
(-12 + 3x + (-4X + xX)) = 78

Reorder the terms:
(-12 + -4X + 3x + xX) = 78
(-12 + -4X + 3x + xX) = 78

Solving
-12 + -4X + 3x + xX = 78

Solving for variable 'X'.

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

Add '12' to each side of the equation.
-12 + -4X + 3x + 12 + xX = 78 + 12

Reorder the terms:
-12 + 12 + -4X + 3x + xX = 78 + 12

Combine like terms: -12 + 12 = 0
0 + -4X + 3x + xX = 78 + 12
-4X + 3x + xX = 78 + 12

Combine like terms: 78 + 12 = 90
-4X + 3x + xX = 90

Add '-3x' to each side of the equation.
-4X + 3x + -3x + xX = 90 + -3x

Combine like terms: 3x + -3x = 0
-4X + 0 + xX = 90 + -3x
-4X + xX = 90 + -3x

Reorder the terms:
-90 + -4X + 3x + xX = 90 + -3x + -90 + 3x

Reorder the terms:
-90 + -4X + 3x + xX = 90 + -90 + -3x + 3x

Combine like terms: 90 + -90 = 0
-90 + -4X + 3x + xX = 0 + -3x + 3x
-90 + -4X + 3x + xX = -3x + 3x

Combine like terms: -3x + 3x = 0
-90 + -4X + 3x + xX = 0

The solution to this equation could not be determined.

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