Given  $x=4,\ y=-2\ and\ z=3,$ 
find the value of  $5x+3y-z$  .

(a)  

Simplify $\left(4x-7y\right)-\left(5x-9y\right)$  

(a)  

Solve   $5\left(q-1\right)+8=11$  

(a)  

Solve  $7+9h=2h$  

(a)  

Write the linear equation based on the statement: The sum of two numbers, x and y, is 56.

(a)  

Solve  $n+11=8$  

(a)  

Simplify  $hk-3h+5hk+4k$  

(a)  

 $If\ m=\frac{2}{3},\ evaluate\ 7-12m.$  

(a)  

Solve  $\frac{2x-1}{5}=3$  

(a)  

Solve  $\frac{p+4}{5}=p-2$  

(a)  

The perimeter of a rectangle with a length of z cm and the width of 5 cm is 28 cm. Find the value of z.

(a)  

Solve  $-\frac{1}{2}w+7=-4$  

(a)  

Erin is 5 years younger than her sister. Their total age is 47 years. Calculate Erin's age.

(a)