Alka Tuli and Rajesh Hassija Solutions for Chapter: Algebraic Expressions, Exercise 3: Exercise

Add the following terms.

$19x,-55x$ and $\frac{2}{3}x$

(Mention your answer in fraction form)

Add the following terms.

 $7\mathrm{xyz}, -4\mathrm{xyz}$

Add the following terms.
$-15\mathrm{pq}, 12\mathrm{pq}, -23\mathrm{pq}$ and $7\mathrm{pq}$

Add the following using the horizontal method.
$5\mathrm{xy}+2\mathrm{x}, -2\mathrm{xy}+3\mathrm{y}$ and $8\mathrm{xy}-3\mathrm{x}+4\mathrm{y}$

Add the following using the horizontal method.
$\mathrm{m}+1$ and ${\mathrm{m}}^2+\mathrm{m}$

Add the following using the horizontal method.
$4{\mathrm{t}}^4+2\mathrm{t}+11, -3{\mathrm{t}}^2+\mathrm{t}$ and ${\mathrm{t}}^4-2$

Add $2a+3b-4c,8c-1$ and $5b+4$ and find the sum of coefficients of $a, b$and $c$.

Simplify: $3\mathrm{m}+6\mathrm{n}-3\mathrm{m}-2\mathrm{n}$