Question

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Answer 1

Answer:

the answer is in the above image

Answer 2

Answer:

Given 15(y-4)-2(y-9) + 5(y+6)=0

Now by rearranging we get 15y-60-2y+18+5y+30=0

18y-12=0

By transposing the above equation we can write as 18y=12

Again by transposing

y=12/18

y=6/9=2/3

0.25( 4f - 3 ) = 0.05( 10f - 9 )

1/4( 4f - 3 ) = 1/20( 10f - 9 )

5(4f − 3) = 10f − 9

⇒ 20f − 15 = 10f − 9 (Opening the brackets)

⇒ 20f − 10f = − 9 + 15

⇒ 10f = 6

⇒ f = 3/5 = 0.6