18. Solution of the Equations x+y=5 and 2x-
3y=4 is
19/5, 6/5
6/5, 7/6
9/7, 19/5
None of these
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3
Answer:
19/5 , 6/5
Step-by-step explanation:
By elimination method
x + y =5 ……….(1)
2x –3y = 4 ………(2)
Multiplying equation (1) by 2, we obtain
2x + 2y = 10 ………..(3)
2x –3y = 4 ………(2)
Subtracting equation (2) from equation (3), we obtain
5y = 6
y = 6/5
Substituting the value in equation (1), we obtain
x = 5 - (6/5) = 19/5
So our answer is x = 19/5 and y = 6/5
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