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vovikov84 [41]
3 years ago
8

Rewrite the following equation as a function of x. 56x + 7y + 21 = 0

Mathematics
1 answer:
liq [111]3 years ago
5 0

Answer:

f(x)= -8x-3

Step-by-step explanation:

i got it right

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3 years ago
Find the value of two numbers is their sum is 21 and their difference is 3
kobusy [5.1K]

Hello from MrBillDoesMath

Answer:   12, 9

Discussion:

Let x be the first number and y the second number. The form the problem statement:

x + y = 21

x - y = 3


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(x + x ) + ( y-y) = 21 + 3 =>

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x = 12

Since x -y =3, substituting in the value of x gives,  12 - y = 3 so y = 9


Thank you,

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8 0
3 years ago
Read 2 more answers
Rewrite 31/9 as a mixed number
Sergeeva-Olga [200]
3 4/9 would be the correct answer
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3 years ago
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