Question

guys please solve it​

Answer 1

Answer:

(x-y)-z=[1/10-(-6/10)]-7/20

7/10-7/20

7/20

x-(y-z)=1/10-[(-3/5)-(7/20)]

1/10-(-12/20)-(7/20)

1/10-(-17/20)

2/20+17/20

19/20

hence (x-y)-z is not equal to x-(y-z)

hope this will help you

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Answer 2

Answer:

$\blue{\mathfrak{\underline{\large{Given}}}:} \\ x = \frac{1}{10} \: \: , \: \: y = \frac{ - 3}{5} \: \: , \: \: \frac{7}{20} \\ \blue{\mathfrak{\underline{\large{To \: find}}}:} \\( x - y) - z = ? \: \: , \: \: x - (y - z) = ? \\( x - y) - z = x - (y - z) = ? \\ \blue{\mathfrak{\underline{\large{Finding}}}:} \\ (x - y) - z = x - (y - z) \\ (\frac{1}{10} - \frac{ - 3}{5} ) - \frac{7}{20} = \frac{1}{10} - ( \frac{ - 3}{5} - \frac{7}{20} ) \\ \frac{7}{10} - \frac{7}{20} = \frac{1}{10} + \frac{ 19}{20} \\ \frac{7}{20} = \frac{21}{20} \\ L.H.S≠R.H.S \\ \\ \red{\mathfrak{ \large{\underline{{Hope \: It \: Helps \: You}}}}} \\ \blue{\mathfrak{ \large{\underline{{Mark \: Me \: Brainliest}}}}}$