Select which ones are the equations. There can be more than one response.

• $4\ +\ w\ =\ 10$

• $3y\ +\ 4$

• $x\ +\ 7\ -\ y$

• $8\ +\ 9\ =\ 17$

 $3x\ +\ 7\ =\ 16\ ,\ \ \ \ \ \ \ \ \ \ \ \ \ \ if\ x\ =\ 3$ 
Is this equation true or false?

• True

• False

 $\frac{20}{x}-10\ =\ 2,\ \ \ \ \ \ \ \ \ \ \ \ if\ x=2$  
Is this equation true or false?

• True

• False

Determine which equation fits this scenario:

The produce of 4 and x is equal to 48.

• $4\ +\ x\ =\ 48$

• $48\ -\ 4\ =\ x$

• $4\times x\ =\ 48$

• $\frac{4}{48}=\ x$

Determine which equation fits the scenario:

When d is doubled the result is 30

• $d\ \times\ d\ =\ 30$

• $d\ +\ 20\ =\ 30$

• $30\ -\ 30\ =\ d$

• $d\ \times\ 2\ =\ 30$

The sum of b and 15 is equal to 22.

• $b\ +\ 15\ =\ 22$

• $b\ \times\ 15\ =\ 22$

• $b\ -\ 15\ =\ 22$

• $\frac{b}{15}=\ 22$

Ice creams cost $i and doughnuts cost $d each. Four ice creams and three doughnuts cost $22.

• $i+4\ \times\ d\ +3\ =\ 22$

• $i4\ +\ d3\ =\ 22$

• $i\ \times d\ +\ 4\times3\ =\ 22$

• $i3\ +\ d4\ =\ 22$

 $a\ -\ 10\ =\ 7$  Solve the equation by inspection:

 $33\ =\ x\ \times3$  Solve the equation by inspection:

 $m\ \div4\ =\ 8\$  Solve the equation by inspection: