Lynn Byrd, Greg Byrd and, Chris Pearce Solutions for Chapter: Expressions, Formulae and Equations, Exercise 4: Exercise 2.3

Simplify the given expression: $7w-4w$

Simplify the given expression: $8n-n$

After simplifying the given expression: $9b^2-5b^2$ if we get $k{b}^2$, then find the value of $k$.

Simplify the given expression: $6f+2f-3f$

Simplify the given expression: $9j+j-7j$

After simplifying the given expression: $8k^3-5k^3-2k^3$ if we get $a^3$, then find the value of $a$.

Simplify the expression. 

Write your answer in its simplest form and as an improper fraction.

$\frac{3b}{5}+\frac{7b}{15}$

Simplify the expression. 

Write your answer in its simplest form and as an improper fraction.

$2c+\frac{c}{3}$