Question

X + 2Y = -1. 2X-3Y =12. find X and Y . please include the steps in the answer.

Answer 1

X+2y =-1..........(1)
2X-3y=12..........(2)
eq(I) 2y +1 = X

put value of x in eq2
2×(2y+1) -3y =12
4y+2-3y=12
y=12-2
y=10

again
put y =10 in eq 2
2x-3×10 =12
2x-30 =12
2x=12+30
2x =42
x= 42/2
x=21

hence y =10 ,x=21