Changing the subject of a formula

Make w the subject of the formula

 $y=3w-a$  

•  $w=\frac{y}{3}+a$  

•  $w=y+\frac{a}{3}$  

•  $w=\frac{y+a}{3}$  

•  $w=\frac{y-a}{3}$  

Make w the subject of the formula

 $s=\frac{w}{a}$  

•  $w=\frac{s}{a}$  

•  $w=sa$  

•  $w=\frac{a}{s}$  

•  $w=s+a$  

 $v=u+10t$  Make u the subject of the formula

•  $u=v-10t$  

•  $u=v+10t$  

•  $u=\frac{v}{10t}$  

•  $u=\frac{v}{-10t}$  

 $s=\frac{hm}{4}$  Make m the subject of the formula

•  $m=\frac{4s}{h}$  

•  $m=\frac{sh}{4}$  

•  $m=\frac{h}{4s}$  

•  $m=\frac{s}{4h}$  

 $c=\sqrt{d}+2$  Make d the subject of the formula

•  $d=\left(c-2\right)^2$  

•  $d=\left(c+2\right)^2$  

•  $d=c^2-2$  

•  $d=c^2+2$  

Make b the subject of the formula

 $a^2+b^2=c^2$  

•  $b=\sqrt{c^2-a^2}$  

•  $b=\sqrt{a^2-c^2}$  

•  $b=\sqrt{c^2+a^2}$  

•  $b=\sqrt{a^2+c^2}$  

Make x the subject of the formula.

y=x+6

• x=y+6

• x=y-6

• $x=\frac{y}{6}$

• x=6y

Make x the subject of the formula.

7x=y

• $x=\frac{y}{7}$

• x=7y

• x=7+y

• x=7-y

Make x the subject of the formula.

y=2x+8

• x=2y-8

• $x=\frac{y-8}{2}$

• x=8-y

• x=y-8

Make x the subject of the formula.

 $y=\frac{x}{3}$  

• x=3y

• x=y+3

• x=3/y

• x=y-3