Understanding and generating non-linear equations in two or more variables

Make x the subject of the formula:

• $x\ =\ \sqrt{y-a}$
  

• $x\ =\ \sqrt{y}-a$
  

• $x\ =\ \sqrt{y+a}$
  

• $x\ =\ \sqrt{y}+a$
  

Solve the equation for x.

 $a\ =\ 5x\ +\ 1$  

•  $\frac{a+1}{5}\ =\ x$  

•  $5a\ -\ 1\ =x$  

•  $a\ -5\ =\ x$  

•  $\frac{a-1}{5}=x$  

Apakah perkara rumus bagi  $k=3m-4$  ?

• m

• 4

• 3

• k

Solve for S:

P=4s

• p(4)=s

• 4(s)=p

• p/4=s

• 2/4=p

The perimeter of a rectangle is P = 2W + 2L, where w is the width of the rectangle and l is the length of the rectangle . Rearrange this formula to find the width of the rectangle.

Solve for x:

• x = yb - v
• x = by - v
• x = by + v