Question

1) Identify each equation below as true, false, or open.
a) 2x – 4 = 3x + 7
b) 4 – 7 = 7 – 4
c) –2 + 3 = 3 – 2

2) What is the solution to 6 – 5x = –9?

3) Which ordered pair is a solution of the equation y = 9 – x?
a) (–6, 12)
b) (–3, 12)
c) (3, –6)
d) (6, –3)

4) Which ordered pair is a solution of the equation y = –6x?
a) (–2, 12)
b) (–3, –18)
c) (4, –2)
d) (4, 24)

5) Which ordered pair is a solution of the equation y = 3x – 2?
a) (1, –1)
b) (2, 3)
c) (3, 4)
d) (4, 10)

Answer 1

1.
a) open
b) false
c) true

Answer 2

2. x=3

Answer 3

3. (–3, 12)

Answer 4

4. (–2, 12)

Answer 5

5. (4, 10)

Answer 6

6)Natasha and Alex go jogging together every Saturday morning. Natasha always
runs two more miles than Alex. If the variable x represents the distance Natasha
runs and y represents the distance Alex runs, graph the relationship between the
distances Natasha and Alex could run each Saturday.

7) Which equation below is an identity?
a) 5f + 6 = 5f – 6
b) 4q + 3 = 3q – 3 + q
c) 6t + 1 – 3t = –2t – 1
d) 8a – (a + 4) = 9a – 2(a + 2)

8) Which equation below has no solution?
a) 4z – 1 = –4z + 10
b) 7n + 9 = 7n – 2
c) 6s + 5 = 5s – 6
d) 8c – 3 = 8c + 7 – c

9) Chris and Lucy went to a baseball game. They each bought a bag of peanuts and
Lucy purchased a bottled water. Chris had a $10 gift card toward the cost and paid
the rest, which came to $32.00. If a baseball ticket costs $14.75 and a bag of
peanuts costs $4.50, what is the cost of a bottled water?
On problems 10-21, solve the equation.
10) –11 = q + 8
11) d – 6 = –13
12) 12.9 = 3m

Answer 7

@satellite73

Answer 8

Just need help with 6-12