Rearranging formulae

Solve for x:

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

Tags

CCSS.HSA.REI.B.3

Solve for y:
3x + y = 12

• y = -3x +12
• x = y + 4
• x = y + 12
• y = 3x -12

Tags

CCSS.6.EE.C.9

Rearrange to make y the subject
 $\frac{y}{5}+k=w$  

•  $y=5\left(w+k\right)$  

•  $y=\frac{w+k}{5}$  

•  $y=\frac{w-k}{5}$  

•  $y=5\left(w-k\right)$  

Rearrange to make y the subject
 $y^3-4=2x$  

•  $y=^3\sqrt{2x}+4$  

•  $y=^3\sqrt{2x+4}$  

•  $y=\sqrt{2x+4}$  

•  $y=\frac{2x+4}{3}$  

Rearrange to make y the subject
 $\left(2+y\right)^2=t$  

•  $y=\sqrt{t-2}$  

•  $y=\sqrt{t}+2$  

•  $y=2t+2$  

•  $y=\sqrt{t}-2$  

The formula for the area of a triangle,
 $A=\frac{1}{2}\left(b\times h\right)$ 
Rearrange this to make the height, $b$ , the subject.

•  $b=\frac{1}{2}\left(h\times A\right)$  

•  $b=\frac{A}{2h}$  

•  $b=\frac{2A}{h}$  

• They are all correct

Rearrange the following equation to make $r$ the subject

 $p=3r-5$  

•  $r=\frac{p+5}{3}$  

•  $r=p+5\div3$  

•  $r=\frac{p-5}{3}$  

•  $r=p-5\div3$  

 $V=\pi r^2h$  
Rearrange to make r the subject

•  $r=\sqrt{\frac{V}{\pi h}}$  

•  $r=\sqrt{V\pi h}$  

•  $r=\left(\frac{V}{\pi h}\right)^2$  

•  $r=\frac{V}{\pi h}$  

• 
• 
• 
• 

• 
• 
• 
•