Question

Find the value of yif 13x (y-4)-3 (y-9)=5 (y+4)​

Answer 1

Answer:

y =9

Step-by-step explanation:

We have,

13(y – 4) – 3(y – 9) – 5(y + 4) = 0

Upon expansion we get,

13y – 52 – 3y + 27 – 5y – 20 = 0

13y – 3y – 5y = 52 – 27 + 20 5y = 45

y = 45/5 = 9

∴ y =9

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Answer 2

Question:-

Find the value of yif 13x (y-4)-3 (y-9)=5 (y+4)​

Answer:-

y=9

Solution:-

→ 13×( y - 4 ) - 3( y - 9 ) = 5 ( y + 4)

→ 13y - 52 - 3y + 27 = 5y + 20

→ 10y - 25 = 5y + 20

→ 10y - 5y = 20 + 25

→ 5y = 45

→y = 45/5

→y = 9

Now check our equation

→ 13×( y - 4 ) - 3( y - 9 ) = 5 ( y + 4)

Where y = 9

→ 13×( 9 - 4 ) - 3( 9 - 9 ) = 5 ( 9 + 4)

→ 13 × 5 = 5 × 13

→ 13/13=5/5

→1 = 1

LHS = RHS