Question

[3/4+-2/5]+-7/10=3/4+[-2/5+-7/10]=​

Answer 1

Answer:

-16

Step-by-step explanation:

3/4+2/5+(-7/10)=3/4+(-2/5+(-7/10)

3/4+2/5-7/10=3/4-2/5-7/10

15+8/20-7/10=3/4-(2/5+7/10)

23/20-7/10=3/4-(4+7/10)

23-14/20=3/4-11/10

9/20=30-44/40

9/20= -14/40

9= -14/40×20

9= -7

x= -7-9

x= -16