Removal of Brackets

Q. $\frac{21}{24}>\frac{23}{24}$. State whether the statement is true or false

1. True
2. False

Q.

$-1[a-3\{b-4(a-\overline{b-8})+4a\}+10]$ equals

1. $-a+15b+106$

2. $-a+15b-106$

3. $a+15b-106$

4. $-a-15b-106$

Q.

Simplification of $2(m-n+2a)-2a$ gives $2(m-n+a)$.

1. True

2. False

Q.

Add the following:

$6ab,-5ba,-3a^2$

Q.

On simplification of $xyz-\overline{x+xyz}$, we get

1. $-xyz$

2. $xyz$

3. $-x$

4. $x$

Q.

On simplifying $3b+\left\{\right(2a-\overline{6a-4a}+b)-b\}$, we get

1. $b$

2. $-b$

3. $3b$

4. $-3b$

Q.

$-2(1-m^2)-4$$m^2-(2-m^2)$ equals

1. $-6m^2-6$

2. $6m^2+6$

3. $6m^2+6$

4. $-6m^2+6$

Q.

$3a-[4a-\overline{3a-5b}-3$$2a-(3a-\overline{2a-3b})$$]$ eqauls

1. $-a-14b$

2. $11a-14b$

3. $5a+14b$

4. $-a+14b$

Q.

Simplify : $37x-[5x+\{28x-(19x-7x)\left\}\right]$

1. $-16x$

2. $14x$

3. $16x$

4. $-14x$

Q.

'(a+b)c' equals

1. ac+b

2. a+bc

3. a+b

4. ac+bc

Q.

a-{c+(b-c)} = _____.

1. a-b-2c

2. a+b-2c

3. a+b

4. a-b

Q.

Simplify: $39x–[23x–\{29x–(17x–3x)\left\}\right]$

1. $29x$

2. $31x$

3. $30x$

4. $33x$

Q.

'xy-(x+xy)+x' equals

1. 0

2. x

3. 1

4. -x