3 years ago

Combine the like terms to create an equivalent expression: 3 + 2 + (52) + 6

Mathematics

1 answer:

devlian [24]3 years ago

3 0

It would be -2z+8. Because 3z+-5 is -2 and 2+6 is 8.

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3 years ago

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eimsori [14]

Answer:

(7, - 1)

Step-by-step explanation:

$x = y + 8.....(1) \\ \\ x = 5y + 12....(2) \\ \\ from \: equations \: (1) \: and \: (2) \\ \\ 5y + 12 = y + 8 \\ \\ 5y - y = 8 - 12 \\ \\ 4y = - 4 \\ \\ y = \frac{ - 4}{4} \\ \\ y = - 1 \\ \\ plug \: y = - 1 \: in \: equation \: (1) \\ \\ x = - 1 + 8 \\ \\ x = 7 \\ \\ (x, \: y) = (7, \: - 1)$