x-12=40
x=52
Jessica is baking a cake. The recipe calls for 7 cups of flour. She already put in 4 cups. How many more cups does she need to add ?
Problem Setup: x+4=7
Answer: x=3
2x-3=9
x=6
2(x+10)=80
x=30
x+9=77
x=68
After paying 7 dollars for the pie, Tim has 52 dollars left. How much money did he have before buying the pie ?
Problem Setup:x-7=52
Answer: x=59
x/8-5=6
x=88
5(x-8)=210
x=50
x/2=13
x=26
Melanie found 91 seashells on the beach, she gave Sandy some of her seashells. She has 11 seashell left. How many seashells did she give to Sandy ?
Problem Setup: 91-x=11
Answer: x=80
12+12x=-300
x=-26
17(r+12)=-374
x=-34
8x=32
x=4
Last week Keith had 40 dollars. He washed cars over the weekend and now has 71 dollars. How much money did he make washing cars ?
Problem Setup:x+40=71
Answer: x=31
5+x/30=7
x=60
-3(x+4)=-6
x=-2
x+1436=1192
x=-244
) After eating at the restaurant, Fred, Jason, and Sam decided to divide the bill evenly. If each person paid 34 dollars, what was the total of the bill ?
Problem Setup:x-34=3
Answer: x=102
-x-5=47
x=-52
1/2(x+7)=4
x=1