Simplify the following expressions: 1.2.1 \( \frac{5}{a}-\frac{5}{a^{2}-a} \) \( 1.2 .2 \frac{x-1}{\sqrt{x}+1} \)

3. Question 3. Solve \( x-5=3 x+2 \)

Three consecutive numbers their sum is 48 write an equation express that is .... \( \begin{array}{l}3 x+2=48 \\ 3 x+4=48 \\ 3 x+3=48 \\ 3 x-3=48\end{array} \)

\( 3 x-2 y=7 \) (1) \( y+2 y=14 \) (2)

\( \equiv \) (i) Listen A bowl contains blueberries and strawberries. There are a total of 12 berries in the bowl. The ratio of blueberries to strawberries is 1 to 2 . How many of each berry are in the bowl? \( \square \) blueberries strawberries

5. Question 5. Solve \( 5 x-3=2 x+6 \)