1.
Find a solution to the equation using backtracking.
8
b
– 5 = 19
A.
b
= 3
B.
b
= 2
C.
b
= –2
D.
b
= –3
Hint
2.
Find a solution to the equation using guess-check-and-improve.
A.
n
= 6
B.
n
= 7
C.
n
= 1
D.
n
= 2
Hint
3.
Find a solution to the equation using guess-check-and-improve.
–25 – 3
k
= –7 + 3
k
A.
k
= –6
B.
k
= –3
C.
k
= 1
D.
k
= 4
Hint
4.
In a bag of 53 cherry- and watermelon-flavored candies, there are 19 more watermelon than cherry candies. Write an equation to determine how many candies are cherry.
A.
If
w
= number of watermelon candies,
w
+ (
w
+ 19) = 53.
B.
If
c
= number of cherry candies,
c
+ 19 = 53.
C.
If
w
= number of watermelon candies,
w
+ 19 = 53.
D.
If
c
= number of cherry candies,
c
+ (
c
+ 19) = 53.
Hint
5.
Nine more than a number is the same as 18 less than 4 times the same number. What is the number?
A.
y
= –8
B.
y
= –9
C.
y
= 8
D.
y
= 9
Hint