Question

Q4. On simplification of (a+1)+(a-1)}, the result would be:​

Answer 1

Answer:

2a

Step-by-step explanation:

(a+1)+(a-1)

=a+1+a-1

=a+a+1-1

=2a

hope it will help u

Answer 2

1/3 ÷ 5/3 - 1/10 of 2 ½ + 7/4

= (3 × 3 + 1)/3 ÷ 5/3 – 1/10 of (2 × 2 + 1)/2 + 7/4

= 10/3 ÷ 5/3 - 1/10 of 5/2 + 7/4

[‘of’ simplified]

= 10/3 × 3/5 – ½ × ½ + 7/4 [‘÷’ simplified]

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