1. 7r – 7 = 2r + 18

r = –5
r = 5
r = 2.2
r = 1.2

2. 2x + 12 = 18 – x

x = 3
x = 10
x = 6
x = 2

3. 8x – 3 = 15x + 18

x = –3
x = 3
x = 2.1
x = .9

4. 6y – 6 = 4y + 16

y = 2.2
y = –2.2
y = 11
y = 5

5. 3(x – 4) = 5(x + 2)

x = 11
x = –11
x = 1
x = –1

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1. Intrustions: Solve the equation. Round to the nearest tenth if necessary.

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2. Steve anyone help

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3. these are all basically the same. Here's #5. It should help you on the others:

3(x-4) = 5(x-2)
expand to remove parentheses:
3x-12 = 5x+10

collect the x stuff on one side:
-2x = 22

divide by the coefficient of x: -2
x = -11

3(-11-4) = 5(-11+2)
3(-15) = 5(-9)
-45 = -45

if you get stuck on the others, come on back and show how far you got.

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4. ok so check my answers:

1. b
2. d
3. a
4. c

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5. 1. ok
2. ok
3. ok
4. ok

as you could verify by plugging those values into the equations.

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6. That was easy thanks

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7. it's always easy if you know what you're doing.

even so, there are lots of problems where the steps are easy, but you have to watch the details.

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8. Ok.

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9. looks hard.

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10. it is

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11. Yay for steve!

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b
d
a
c
b

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13. Thanks! 100% correct

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15. “Check my answers “ is correct , thank you

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16. thank you @check my answers

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17. 1.b
2.d
3.a
4.c
5.b
6.b
7.c

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