21 = m + 9 m = 11 is it a solution

Mathematics

1 answer:

Zarrin [17]3 years ago

7 0

No because 21=(11)+9
21 can’t equal to 20

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Option C is correct.

Step-by-step explanation:

We need to solve the system of equations by substitution

$x - y = 6\,\,\,eq(1)\\x = y + 2\,\,\,eq(2)$