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Anvisha [2.4K]
3 years ago
9

Question

Mathematics
1 answer:
BartSMP [9]3 years ago
3 0

Answer:

Let say the four number x, y, a and b

(X+y+a+b) ÷4=9 equation 1(we divide by 4 is because It says average)

So let say x=7 and so let insert this equation

(7+y+a+b)÷4=9

7+y+a+b=9×4

7+y+a+b=36(then shift 7)

Y+a+b=36-7

Y+a+b=29

So the sum of 3 number is 29

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Find out more at: brainly.com/question/7259975

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