২০.4x+3y =13, 3x+2y =11 (x,y) কত হবে? (ক) (6, 2) (গ) (-2, 3) Question ২০.4x+3y =13, 3x+2y =11(x,y) কত হবে?(ক) (6, 2)(গ) (-2, 3) in progress 0 Math Everleigh 7 months 2021-10-13T17:55:20+00:00 2021-10-13T17:55:20+00:00 1 Answer 0 views 0
Answers ( )
Answer:
4x+3y=13
3x+2y=11
now
12x+9y=39
12x+8y=44
subtraction..
0+y= -5
then
y= -5
putting the value of y ..in equ.
4x+3(-5)=13
4x-15=13
4x=28
x=7..
y= -5