y=(9x+7)(x-3)

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Solution for y=(9x+7)(x-3) equation: 


Simplifying
y = (9x + 7)(x + -3)

Reorder the terms:
y = (7 + 9x)(x + -3)

Reorder the terms:
y = (7 + 9x)(-3 + x)

Multiply (7 + 9x) * (-3 + x)
y = (7(-3 + x) + 9x * (-3 + x))
y = ((-3 * 7 + x * 7) + 9x * (-3 + x))
y = ((-21 + 7x) + 9x * (-3 + x))
y = (-21 + 7x + (-3 * 9x + x * 9x))
y = (-21 + 7x + (-27x + 9x2))

Combine like terms: 7x + -27x = -20x
y = (-21 + -20x + 9x2)

Solving
y = -21 + -20x + 9x2

Solving for variable 'y'.

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

Simplifying
y = -21 + -20x + 9x2

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