Question

Solve by substitution
x/5-y/4=9/40,x/3-y/2=5/12​

Answer 1

Answer:

x=1/2, y=-1/2

Step-by-step explanation:

x/5-y/4=9/40 => 8x-10y=9... eq1

x/3-y/2=5/12 => 4x-6y=5... eq2

from eq2 we get,

6y=4x-5

y=(4x-5)/6

substitute y in eq1, we get

8x-10(4x-5)/6=9

24x-20x+25=27

4x=2

x=1/2

y=-1/2