Question

b) solve the
following & Equations by crammers rule
10x + 5y = 125
9x + 12y = 150​

Answer 1

Answer:

x=10, y=5

Step-by-step explanation:

10x+5y=125____(1)

9x+12y=150___(2)

multiply (1) by 9 and (2) by 10 then subtract we get

-17y=-375

=y= 5

put value of y in (1) we get

10x+25=125

10x=125-25=100

10x= 100

x=10