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astra-53 [7]
3 years ago
7

6c-9d=111 5c-9d=103how to solve this problem ​

Mathematics
2 answers:
Tema [17]3 years ago
7 0

Answer:

it is a simultaneous equation.

the -9d can be cancelled to find the answer

trapecia [35]3 years ago
4 0

Answer:

C=8 and d=-7

Step-by-step explanation:

first both equations are subtract we find the value of C and then putting the value of C in any equation then wo find value of d

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