Question

Two numbers are in the ratio 4 : 5. What is the mathematical form of the statement? (Use x and y variables.) *

4x - 5y = 0

5x – 4y = 0

4y + 5x = 0


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Answer 1

4y−5x=0

Subtract 4y from both sides. Anything subtracted from zero gives its negation.

−5x=−4y

Divide both sides by −5.

−5

−5x

​

=−  

−5

4y

​

 

4X-5y=

Dividing by −5 undoes the multiplication by −5.

x=−  

−5

4y

​

 

Divide −4y by −5.

x=  

5

4y

5x-4y

STEPS FOR SOLVING LINEAR EQUATION

4y−5x=0

Add 5x to both sides. Anything plus zero gives itself.

4y=5x

Divide both sides by 4.

4

4y

​

=  

4

5x

​

 

Dividing by 4 undoes the multiplication by 4.

y=  

4

5x

​

​

We have,

5x−4y=12

−4=5x+12

divide (−4) to isolate

∴ y=  

4

5

​

x−3

Hence this is the answer.

sorry for last one and y of 2nd

hope this help