Question

verify that (x+y)+z=x+(y+z) for x = -7/3 , y=4/5 , z=-2/5​

Answer 1

hope this will help you

Answer 2

Step-by-step explanation:

x = -7/3

y=4/5

z=-2/5

LHS = (x+y)+z

$= ( \frac{ - 7}{3} + \frac{4}{5} ) + \frac{ - 2}{5}$

$= ( \frac{ - 35 + 12}{15} ) - \frac{ 2}{5}$

$\frac{ - 23}{15} - \frac{2}{5} = \frac{ - 115 - 30}{75} = \frac{ - 145}{75}$

$= \frac{ - 29}{15}$

RHS = x+(y+z)

$\frac{ - 7}{3} + ( \frac{4}{5} + \frac{ - 2}{5} ) = \frac{ - 7}{3} + \frac{2}{5}$

$= \frac{ - 35 + 6}{15}$

$= \frac{ - 29}{15}$

(x+y)+z=x+(y+z)

Hence verified