Solving Equations

 $3x=27$  
Solve the equation.

•  $x=9$  

•  $x=-9$  

•  $x=81$  

•  $x=-81$  

 $\frac{c}{-2}=-91$  

•  $c=182$  

•  $c=-182$  

•  $c=45.5$  

•  $c=-45.5$  

One type of thermal ice drill can drill through ice at a rate of 15 feet per minute by using heat to melt the ice. Find the time it takes the drill to melt through a sheet of ice 75 feet thick.

• 5 min

• 1125 min

• 90 min

• 60 min

 $-3=\frac{z}{6+11}$  
Solve the equation.

•  $z=-51$  

•  $z=51$  

•  $z=5.7$  

•  $z=-5.7$  

 $y-1.3=-7.4$  
Solve the equation.

•  $y=-6.1$  

•  $y=-8.7$  

•  $y=6.1$  

•  $y=8.7$  

 $8w=75.2$  
Solve the equation.

•  $w=9.4$  

•  $w=601.6$  

•  $w=-9.4$  

•  $w=-601.6$  

 $\frac{z}{6.9}=-3$  
Solve the equation.

•  $z=-20.7$  

•  $z=-2.3$  

•  $z=20.7$  

•  $z=2.3$  

Find the value of x of the given triangle when its perimeter = 10 m.

• $x=2.7\ m$

• $x=17.3\ m$

• $x=-2.7\ m$

• $x\ =-17.3\ m$

 $12=\frac{a}{36}+17$  
Solve the equation.

•  $a=-108$  

•  $a=1044$  

•  $a=108$  

•  $a=-1044$  

 $-2q-63=47$  
Solve the equation.

•  $q=-55$  

•  $q=-8$  

•  $q=55$  

•  $q=8$