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17 July, 22:04

1.2x + 3 = 4x + 2

How many solutions does the equation have?

2.10p+5 = 18p-6/2

What is the value of p?

3. a-2 = 3+6a/3

what is the value of a?

4.5+r-2=9

What is the value of r?

5.0.61m-1.51m = 9

What is the value of M?

6.-2 (x+1/4) + 1 = 5

Solve for X

7.6f - 12 = - 4f + 6

What is the value of f?

8.3n + 16 = 7n

What is the value of n?

9.1/3m + 3 - 5/6m = - 15

What is the value of m?

+4
Answers (1)
  1. 18 July, 00:57
    0
    1. 2x+3=4x+2

    ⇒ 4x-2x=3-2

    2x=1

    x=1/2

    There is one solution.

    2. 18p-10p=5+6/2

    8p=5+3

    8p=8

    p=8:8

    p=1

    3. 6a/3=2a

    2a-a = - 2 - 3

    a = - 5

    4. 5+r-2=9,

    5-2+r=9

    3+r=9

    r=9 - 3

    r=6

    5. - 0,9 m = 9

    m = - 10

    6. - 2 (x+1/4) = 5-1=4

    x+1/4 = - 2

    x = - 2 - 1/4

    x = - 8/4 - 1/4 = - 9/4

    7. 6f+4f = 6 + 12

    10 f = 18

    f=18/10=1,8

    8. 7n - 3n = 16

    4n=16

    n=16:4

    n=4

    9. 1/3m-5/6m = - 15 - 3

    2/6 m-5/6=-18

    - 3/6m=-18 ⇒ 1/2m=18

    m=2*18=36
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