(X-3)(x+4)-7x=y

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Solution for (X-3)(x+4)-7x=y equation:


Simplifying
(X + -3)(x + 4) + -7x = y

Reorder the terms:
(-3 + X)(x + 4) + -7x = y

Reorder the terms:
(-3 + X)(4 + x) + -7x = y

Multiply (-3 + X) * (4 + x)
(-3(4 + x) + X(4 + x)) + -7x = y
((4 * -3 + x * -3) + X(4 + x)) + -7x = y
((-12 + -3x) + X(4 + x)) + -7x = y
(-12 + -3x + (4 * X + x * X)) + -7x = y
(-12 + -3x + (4X + xX)) + -7x = y

Reorder the terms:
(-12 + 4X + -3x + xX) + -7x = y
(-12 + 4X + -3x + xX) + -7x = y

Reorder the terms:
-12 + 4X + -3x + -7x + xX = y

Combine like terms: -3x + -7x = -10x
-12 + 4X + -10x + xX = y

Solving
-12 + 4X + -10x + xX = y

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 + -10x + 12 + xX = 12 + y

Reorder the terms:
-12 + 12 + 4X + -10x + xX = 12 + y

Combine like terms: -12 + 12 = 0
0 + 4X + -10x + xX = 12 + y
4X + -10x + xX = 12 + y

Add '10x' to each side of the equation.
4X + -10x + 10x + xX = 12 + 10x + y

Combine like terms: -10x + 10x = 0
4X + 0 + xX = 12 + 10x + y
4X + xX = 12 + 10x + y

Reorder the terms:
-12 + 4X + -10x + xX + -1y = 12 + 10x + y + -12 + -10x + -1y

Reorder the terms:
-12 + 4X + -10x + xX + -1y = 12 + -12 + 10x + -10x + y + -1y

Combine like terms: 12 + -12 = 0
-12 + 4X + -10x + xX + -1y = 0 + 10x + -10x + y + -1y
-12 + 4X + -10x + xX + -1y = 10x + -10x + y + -1y

Combine like terms: 10x + -10x = 0
-12 + 4X + -10x + xX + -1y = 0 + y + -1y
-12 + 4X + -10x + xX + -1y = y + -1y

Combine like terms: y + -1y = 0
-12 + 4X + -10x + xX + -1y = 0

The solution to this equation could not be determined.

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