Solving Equations

8y-12=44

• y=7

• y=8

• y=48

• y=4

 $\frac{r}{7}-9=-2$  

• r=14

• r=1

• r=-77

• r=49

-6x-11=13

• x=-12

• x=-4

• x=30

• x=12

What is the first step to solve this equation?

3x+7=14

• Multiply

• Add

• Subtract

• Divide

Joey is given the equation 15x+4=9 to solve. He says the solution is  $\frac{1}{3}$  . What reason justifies his solution?

• Joey says to solve the equation you first add 4 then multiply by 15.

• Joey says to solve the equation you first multiply by 15 then add 4.

• Joey says to solve the equation you first subtract 4 then divide by 15.

• Joey says to solve the equation you first divide by 15 then subtract by 4.

15x-15=30

• x=15

• x=1

• x=2

• x=3

 $\frac{x}{19}=4$  

• x=-15

• x=76

• x=23

• x=5

2-8x=138

• x=-17

• x=15

• x=17

• x=128

 $7+\frac{m}{3}=12$  

• m=8

• m=-3

• m=15

• m=29

 $\frac{x}{3}-5=-8$  

• x=-39

• x=-1

• x=-16

• x=-9