Question

Solve the following linear equation
x+2y=21;2x+3y=10
pls help ASAP !!!!!​

Answer 1

Answer:

y=21-x/2...1

2x+3(21-x/2)=10 putting the value of y from equation 1

2x+63-3x/2=10

20x+63-3x/2=10 taking lcm

17x=63-20

17x=43

x= 2.52

now y =21-2.52/2

y=21-1.26

therefore y= 19 .74