(7-a)(4-3a)=z

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Solution for (7-a)(4-3a)=z equation: 


Simplifying
(7 + -1a)(4 + -3a) = z

Multiply (7 + -1a) * (4 + -3a)
(7(4 + -3a) + -1a * (4 + -3a)) = z
((4 * 7 + -3a * 7) + -1a * (4 + -3a)) = z
((28 + -21a) + -1a * (4 + -3a)) = z
(28 + -21a + (4 * -1a + -3a * -1a)) = z
(28 + -21a + (-4a + 3a2)) = z

Combine like terms: -21a + -4a = -25a
(28 + -25a + 3a2) = z

Solving
28 + -25a + 3a2 = z

Solving for variable 'a'.

Combine like terms: z + -1z = 0
28 + -25a + 3a2 + -1z = 0

The solution to this equation could not be determined.

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