Please help with 5 math questions

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

    finally, check your answer!
    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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  12. the answers are
    b
    d
    a
    c
    b

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  13. Thanks! 100% correct

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  14. whats the answers?

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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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