evans64 evans64

12-05-2022
Mathematics

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3f–4g=1
6f–6g=5
use the elimination method

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shannonsoh230 shannonsoh230

12-05-2022

3f-4g= 1 —(1)
6f-6g= 5 —(2)
(1)x2:6f-8g= 2 —(1a)
(1a)-(2):(6f-8g)-(6f-6g)= 2-5
6f-8g-6f+6g= -3
-2g= -3
g= 3/2
Substitute g= 3/2 into (1):
3f-4(3/2)=1
3f-6=1
3f=7
f =7/3

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