2 years ago

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

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