Rearranging equations

Select the equation which is not equivalent to the rest.

•  $ab\ =\ c$  
  

•  $a\ =\ bc$  
  

•  $c\ =\ \frac{a}{b}$  
  

•  $bc\ =\ a$  

•  $b\ =\ \frac{a}{c}$  

Tags

CCSS.HSA.CED.A.4

Select all equations which are equivalent to   $3\ =\ abc$  

•  $a\ =\ \frac{3}{bc}$  

•  $b\ =\ \frac{3}{ac}$  

•  $c\ =\ \frac{3}{ab}$  

•  $b\ =\ \frac{3}{ca}$  

•  $\frac{3}{a}\ =\ bc$  

Tags

CCSS.HSA.CED.A.4

Select the equation which is not equivalent to the rest.

• $a\ =\ b\ +cd$

• $b\ =\ a\ +\ cd$

• $b\ =\ a\ -\ cd$

• $c\ =\ \frac{a\ -\ b}{d}$

• $d\ =\ \frac{a-b}{c}$

Tags

CCSS.HSA.CED.A.4

Select all the equations which are equivalent to $3x\ +\ 2y\ =\ 7$  

•  $7\ -\ 3x\ =\ 2y$  

•  $7\ -\ 2y\ =\ 3x$  

•  $7\ +\ 3x\ =\ 2y$  

•  $7\ +\ 2y\ =\ 3x$  

•  $y\ =\ \frac{7\ -\ 3x}{2}$  

Tags

CCSS.HSA.CED.A.4

Select the equation which is not equivalent to the rest.

• $b\ =\ 3\left(c-5\right)$

• $c\ =\ \frac{b}{3}+5$

• $c\ =\ \frac{1}{3}b\ +5$

• $b\ =\ 3c\ -\ 15$

• $c\ =\ \frac{15-b}{3}$

Tags

CCSS.HSA.CED.A.4

Select the option which has this equation rearranged with n as the subject: $5m\ =\ n-9$  

•  $m\ =\ \frac{n-9}{5}$  

•  $5m\ -\ n\ =\ -9$  

•  $n\ =\ 5m\ +\ 9$  

•  $n\ =\ 5m\ -\ 9$  

•  $n\ =\ \frac{5m}{9}$  

Tags

CCSS.HSA.CED.A.4

 $a\ =\ \frac{b\ -\ c}{d\ +\ e}$  

(CHALLENGE) Choose the option which has this equation rearranged to have d as the subject:

•  $d\ =\ \frac{b\ -\ c}{a}\ -\ e$  

•  $d\ =\ \frac{b\ -\ c}{a\ +\ e}$  

•  $d\ =\ \frac{b\ -\ c}{a\ -\ e}$  

•  $d\ =\ e\ +\ \frac{b-c}{a}$  

•  $d\ =\ e\ +\ \frac{a\ -\ e}{b\ -\ c}$  

Tags

CCSS.HSA.CED.A.4

Evaluate: $10^2\ \div\ 4\left(5\right)\ -\ 3$  

(a)