Question

For x=1/10, y=-3/5 z=7/20, find the values of the expressions (x – Y) - z and x-(y-z). Are they equal?​

Answer 1

x-y=1/10-(-3/5)

=1/10+3/5

= 2/20+12/20

=2+12/20

=14/20

=7/10

(x-y)-z=7/10-7/20

=14/20-7/20

=14-7/20

=7/20

y-z=-3/5-7/20

=-12/20-7/20

= -19/20

x-(y-z)=1/10-(-19/20)

= 1/10+19/20

=2/20+19/20

=2+19/20

=21/20

they are not equal

Answer 2

Answer:

hey mate

$- ( \frac{7}{20} \times \frac{1}{10} ) - ( \frac{7}{20} \times \frac{3}{5} ) \\ - \frac{7}{200} - \frac{21}{100 } \\ \frac{ - 7 - 42}{200} \\ \frac{ - 49}{200}$