Question

solve this question step by step​

Answer 1

Answer:

Place instead of x,y &solve

Step-by-step explanation:

Answer 2

1) x+y

= -2/5+3/4

= -8+15/20

= 7/20: Ans

2) x-y

= -2/5-3/4

= -8-15/20

= -23/20: Ans

3) x×y

= -2/5×3/4

= -6/20

= -3/10: Ans

4) x÷y

= -2/5÷3/4

= -15/8: Ans

5) xy-y

= -2/5×3/4-3/4

= -6/20-3/4

= -3/10-3/4

= -6-15/20

= -21/20: Ans

6) y×x

as we find no.3 x×y= -3/10

= -3/10: Ans

7) x-y +x

= -2/5-3/4+(-2/5)

= (-8-15/20)+(-2/5)

= (-23/20)+(-2/5)

= -23-8/20

= -31/20: Ans

8) x+y +x/y

= -2/5+3/4+(-2/5/3/4)

= (-8+15/20)+(-2/5)×(4/3)

= 7/20+(-8/15)

= 7+(-32)/60

= -25/60= -5/20: Ans

9) x-y-y

= -2/5-3/4-3/4

= -8-15-15/20

= -23-15/20

= -38/20

= -19/10: Ans

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