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disa [49]
3 years ago
14

Y=8 when x=20 find y when x= 30

Mathematics
1 answer:
Masteriza [31]3 years ago
4 0

Answer:

y=13

Step-by-step explanation:

if x=20 when y=8 (we can creat equation )

x=2y+4 (you can prove that the equation is correct by substitute )

so the question is if x=30 find the value of y

30=2y+4

30‒4=2y

26=2y

26/2=2y/2

13=y

i hope this helps you

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