Question

question no 30 please do it step by step please ​

Answer 1

Answer:

(a) {4-2a+5b} - {5a-3b-6}

= -5a-2a+3b+5b+6+4

= -7a+8b+10.

(b) 5m- {2n-(3m+4n)}

= 5m- {2n-3m-4n}

= 5m- {-2n-3m}

= 5m+2n+3m

= 8m+2n.

I hope this answer will help you.

Answer 2

Question

Simplify :-

(a) {4-2a+5b}-{5a-3b-6}

(b)5m-{2n-(3m+4n)}.

$\sf\huge\bold{\underline{\underline{{Solution}}}}$

Step by step explanation

1. First we solve values inside brackets
2. After solving inside brackets we will remove brackets and expand the terms.
3. Taking like terms together.

a){4-2a+5b}-{5a-3b-6}

=>4-2a+5b-5a+3b+6

=>-2a-5a+5b+3b+6+4

=>-7a+8b+10

-3a+8b+6 is your answer

(b)5m-{2n-(3m+4n)}

=>5m-{2n-3m-4n}

=>5m-{-2n-3m}

=>5m+2n+3m

=>8m+2n

=>2(4m+n)

2(4m+n) is your answer