I can not under stand this question 3x-5y-4 , 9x-2y +7
Anonymous2k04:
Is this question is to solve for x and y?
Answers
Answered by
0
Answer:
x=[-43/39]. y=[19/13]
Step-by-step explanation:
3x-5y=4_____(1)
9x-2y=-7____(2)
From (1) x=4+5y/3___(3)
Substitute (3) in (2)
9(4+5y/13)-2y= -7
12+15y-2y= -7
13y=-7-12
y=-19/13
Substitute y=-19/13 in (3)
x= 4+5*(-19/13)/3
=-43/13*1/3
=-43/39
Similar questions