1. –9x – 5 = –95
a) 17
b) 11
c) 10
d) –10
2. x/4 – 5 = –8
a) –27
b) –12
c) –7
d) 12
3. x/5 + 6 = 10
a) 44
b) 30
c) 20
d) –20
4. –2(m – 30) = –6m
a) –15
b) –13
c) –8
d) 8
5. 3.75x + 3.7 = 1.7 + 1.75x
a) 10
b) –1
c) 1
d) .1
Simplify this equation
6. -9 - 6( w + 5)
a) -15w + 5
b) -15w + 30
c) -6w - 39
d) -6w + 21
Simplify this equation
7. 2x + 3( x - 2) - 3( x - 6)
a) 2x + 12
b) 2x - 8
c) 8x - 24
d) 2x - 24
8. x + 8 < -28
a) x < -36
b) x < -20
c) x < 20
d) x < 36
10. -8x > -64
a) x < 8
b) x > 8
c) x < -72
d) x > 72
ANSWERS
1. C
2. B
3. C
4. A
5. B
6. A
7. B
8. A
9. A
10. A
I could've sworn that I copied this one correctly from my notes on the computer, but I guess I didn't, but this is the real one. If you can help me and explain what I did wrong, I would be very thankful
Can you help me with 3 and 6? When I do number 3 I do
x/5+6=10
-6 -6
x/5=4
x5 x5
x=20
Disagree with 6, 7. There was no 9.
1. C yes
2. B yes
3. C no
4. A yes
5. B yes
6. A no
7. B no
8. A no
9. A this problem is not shown above
10. A yes
2x + 3( x - 2) - 3( x - 6)
2x + 3x -3x = -6 +18
2x + 12
In contrast to Ms.Sue, agree with 8 and 3.
x / 5 + 6 = 10
Subtract 6 to both sides
x / 5 + 6 - 6 = 10 - 6
x / 5 = 4
Multiply both sides by 5
x = 4 ∙ 5
x = 20
Ok, I'm good on that one, but what about 6? Can you like give me hints on how to solve it? I don't really want to know the answer until I give up
6.
- 9 - 6( w + 5 ) =
- 9 - 6 ∙ w - 6 ∙ 5 =
- 9 - 6 w - 30 =
- 6 w - 39