Literal Equations

Solve the formula for r. What is the 1st step?

• Divide each side by t.

• Subtract t from each side.

• Add t to each side.

• Multiply each side by t.

 $a\ =\ 3y-x\ \ \ \ \ \ \ \ \ \ \ \ solve\ for\ x$  

•  $x\ =\ a\ +\ 3y$  

•  $x\ =\ a\ -3y$  

•  $x\ =\ -a\ -3y$  

•  $x\ =\ -a+3y$  

m - n = 5  $\ \ \ \ \ \ \ Solve\ for\ \ m$  

• m = 5 + n

• m = -5 - n

• m = -5 + n

• m = 5 - n

Solve for b         $A=\frac{bh}{2}$

• $b=\frac{2h}{A}$

• $b=\frac{h}{2A}$

• $b=\frac{A}{2h}$

• $b=\frac{2A}{h}$

 $\ u\ =\ bak\$     Solve for  a

•  $a=\frac{u}{bk}$  

•  $a\ =\ \frac{bk}{u}$  

•  $a\ =\ -\frac{bk}{u}$  

•  $a=-\frac{u}{bk}$  

 $c+a=d+r$          solve for a

•  $a=-d-r+c$  

•  $a=-c+d+r$  

•  $a=-r+c+d$  

•  $a=-c-d-r$  

Solve the formula for t. What is the 1st step?

• Multiply each side by t.

• Subtract f from each side.

• Divide each side by t.

• Add s to each side.

Solve for  d.

$C\ =\ \pi d$

• $C\ -\ \pi=d$

• $C\ +\ \pi=d$

• $\pi C=d$

• $\frac{C}{\pi}=d$

$V\ =\ lwh$         Solve for h. 

•  $V\ -l-w\ =\ h$ 

• $V-lw\ =\ h$

• $\frac{V}{lw}=\ h$

• $V-\frac{l}{w}=h$

 $P=2l+2w\$                 Solve for  $l$  

•  $l=2P-4w$  

•  $l=\frac{P-2w}{2}$  

•  $l=P-2w$  

•  $l=\frac{P+2w}{2}$