Question

Linear equation:

0.5z+4/1.2z+6 =5/3
the answer should come z=-4​

Answer 1

Answer:

On cross multiplication

3(0.5z+4) = 5(1.3z+6)

1.5z+12 = 6.5z+30

1.5z-6.5z = 30-12

5z = 18

z = 18/5

z = 3.6

This is your answer. Not -4.

Answer 2

Answer:

Ans of 0.5z+4/1.2z+6 =5/3