RPA Changing the subject

 $ax+r\ =\ 7\ \ Solve\ for\ r.$  

•  $r=\frac{7}{ax}$  

•  $r=7-ax$  

•  $r=7+ax$  

•  $r=7ax$  

Tags

CCSS.HSA.CED.A.4

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

 $p=\frac{w}{a}$  Solve for w.

•  $w=pa$  

•  $w=\frac{p}{a}$  

•  $w=\frac{a}{p}$  

•  $w=p+a$  I

Tags

CCSS.HSA.CED.A.4

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

 $8x+4y=16$  

Solve for y:

•  $y=-8x+16$  

•  $y=2x-4$  

•  $y=-2x+4$  

•  $y=-8x+12$  

Solve for x:

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

Tags

CCSS.HSA.CED.A.4

CCSS.HSA.REI.B.3

 $dx+e=f$ 
 Which expression represents the value of x in the equation:

•  $x=\frac{f+e}{d}$ 

•  $x=\frac{f-e}{d}$ 

•  $x=\frac{d}{e-f}$  

•  $x=\frac{d}{e+f}$  

Tags

CCSS.HSA.CED.A.4

CCSS.HSA.REI.B.3

Make w the subject of the formula

 $y=3w-a$  

•  $w=\frac{y}{3}+a$  

•  $w=y+\frac{a}{3}$  

•  $w=\frac{y+a}{3}$  

•  $w=\frac{y-a}{3}$  

 $P=6x+2$  Express x in terms of P.

•  $x=p-\frac{1}{3}$  

•  $x=\frac{p}{6}-\frac{1}{3}$  

•  $x=\frac{p}{6}+\frac{1}{3}$  

•  $x=\frac{p}{6}-2$  

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

•  $m=\frac{4s}{h}$  

•  $m=\frac{sh}{4}$  

•  $m=\frac{h}{4s}$  

•  $m=\frac{s}{4h}$  

Tags

CCSS.HSA.CED.A.4

 $c=\sqrt{d}+2$  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

 $a^2+b^2=c^2$  

•  $b=\sqrt{c^2-a^2}$  

•  $b=\sqrt{a^2-c^2}$  

•  $b=\sqrt{c^2+a^2}$  

•  $b=\sqrt{a^2+c^2}$