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AleksAgata [21]
2 years ago
9

Can't get my head around this at all any help would be greatly appreciated.​

Mathematics
2 answers:
Mashcka [7]2 years ago
6 0

Answer:

x=-6

Step-by-step explanation:

A=7x-6\\B=3x+2\\For A=3B\\7x-6=3(3x+2)\\7x-6=9x+6\\2x=-12\\x=-6\\

chubhunter [2.5K]2 years ago
3 0

Answer:

The input is -6, hope this helps :D

Step-by-step explanation:

Represent the machines as expressions:

outputA= 7x-6

outputB= 3x+2

Find the input when the outputA is 3*outputB:

outputA=3outputB

(7x-6)=3(3x+2)

7x-6=9x+6

2x=-12

x=-6

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