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9. 1/3(x+6) =8

15. 1/5(x+10)=6

20. 1/8(24x+32)=10

32. 5-1/2(x-6)=4

33.2/3(3x-6)=3

Sagot :

Panoyin
9.       ¹/₃(x + 6) = 8
    ¹/₃(x) + ¹/₃(6) = 8
           ¹/₃x + 2 = 8
                  - 2  - 2
            3 · ¹/₃x = 6 · 3
                     x = 18

15.       ¹/₅(x + 10) = 6
      ¹/₅(x) + ¹/₅(10) = 6
                ¹/₅x + 2 = 6
                       - 2  - 2
                 5 · ¹/₅x = 4 · 5
                         x = 20

20.       ¹/₈(24x + 32) = 10
      ¹/₈(24x) + ¹/₈(32) = 10
                     3x + 4 = 10
                           - 4   - 4
                           3x = 6
                            3     3
                             x = 2

32.        5 - ¹/₂(x - 6) = 4
      5 - ¹/₂(x) - ¹/₂(-6) = 4
              5 - ¹/₂x + 3 = 4
              5 + 3 - ¹/₂x = 4
                    8 - ¹/₂x = 4
                 - 8            - 8
                -2 · (-¹/₂x) = -4 · (-2)
                             x = 8

33.      ²/₃(3x - 6) = 3
     ²/₃(3x) - ²/₃(6) = 3
                2x - 4 = 3
                    + 4 + 4
                     2x = 7
                      2     2
                       x = 3¹/₂
Albina
9.
х+6=8÷1/3
х+6=8×3/1
х+6=24
х=24-6
х=18

15.
х+10=6÷1/5
х+10=6×5/1
х+10=30
х=30-10
х=20

20.
24х+32=10÷1/8
24х+32=10×8/1
24х+32=80
24х=80-32
24х=48
х=48÷24
х=2
View image Albina
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