3x+2y=4 8x+5y=9 (solve it by cross multiplication METHOD)
Answers
Answered by
12
Answer:
x=-2 y=5
Step-by-step explanation:
multiply eq 1 by 8
and eq 2 by 3
the equation will be
24x+16y=32
24x+15y=27
now subtract eq 2 from eq 1 and you'll get your answer
Answered by
1
Answer:
x = -2 and y = 5
Step-by-step explanation:
Given Equations are,
8x + 5y = 9
8x + 5y - 9 = 0 ....................(1)
3x + 2y = 4
3x + 2y - 4 = 0 .......................(2)
here,
since,
There exist unique solution,
By cross multiplication method we get,
First Consider,
Secondly consider,
Therefore, x = -2 and y = 5
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