If 20x+30y=10 and 18x+32y=20 then find x-y=
Answers
Answered by
7
Answer:
x - y =-5
Step-by-step explanation:
solution⇒
we have two equations
as we can see
20x +30y=10₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋ (1)
18x+32y=20 -----------------(2)
now subtract equ 1 ans 2
we get
20x+30y=10
-18x+32y=20
----------------------
2x -2y = -10
now divide this equation by 2
we get
2x/2 -2y/2 =-10/2
x - y =-5
Answered by
2
Answer:
the upper answer is right ❤❤❤
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