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


Sagot :

Answer:

it is a simultaneous equation.

the -9d can be cancelled to find the answer

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