Question

verify (a+b)+c = a+(b+c) a=7/9,b=5/6,c= -11/9​

Answer 1

Answer:

here is your answer thanks

Answer 2

Given data:

$a=\frac{7}{9},b=\frac{5}{6},c=-\frac{11}{9}$

To verify:

• $(a+b)+c=a+(b+c)$

Step-by-step explanation:

First we find the value of the left hand side.

• $\quad (a+b)+c$

• $=(\frac{7}{9}+\frac{5}{6})-\frac{11}{9}$

• $=(\frac{14+15}{18})-\frac{11}{9}$

• $=\frac{29}{18}-\frac{11}{9}$

• $=\frac{29-22}{18}$

• $=\frac{7}{18}$

Now we find the value of the right hand side.

• $\quad a+(b+c)$

• $=\frac{7}{9}+(\frac{5}{6}-\frac{11}{9})$

• $=\frac{7}{9}+(\frac{15-22}{18})$

• $=\frac{7}{9}-\frac{7}{18}$

• $=\frac{14-7}{18}$

• $=\frac{7}{18}$

We see that the values found for both sides is equal.

Conclusion: $(a+b)+c=a+(b+c)$