Question

Using elimination method, solve 8y-5z=7, 3y=4(z-2)​

Answer 1

Answer:

z=5,y=4

Step-by-step explanation:

8y-5z=7·······eqn(1)

3y=4(z-2)⇒3y-4z=-8......eqn(2)

24y-15z=21.......(multiplying eqn.1 by 3)....I

24y-32z=-64........(multiplying eqn.2 by 8.....II

after subtracting II from I we have 17z=85⇒z=5

substituing z=5 in eqn (1) we have y=4.

hence solved.

hope this helps.