Matematika

Pertanyaan

1. 2y = 3 + 5y
2. 4 - a = 10
3. 2 ( y - 1 ) = 10
4. 8 - p per 3 = 2
5. 6× + 1 per 5 = 2× - 1 per 2

Tolong dijawab semuanya & dikasih caranya !

1 Jawaban

  • 1.
    2y = 3+5y
    2y - 5y = 3
    -3y = 3
    y = 3/-3
    y = -1

    2.
    4-a = 10
    -a = 10-4
    -a = 6
    a = 6/-1
    a = -6

    3.
    2(y-1) = 10
    2y -2 = 10
    2y = 10+2
    2y = 12
    y = 12/2
    y = 6

    4.
    [tex] \frac{8 - p}{3} = 2 \\ 8 - p = 2 \times 3 \\ - p = 6 - 8 \\ - p = - 2 \\ p = \frac{ - 2}{ - 1} \\ p = 2[/tex]

    5.
    [tex] \frac{6x + 1}{5} = \frac{2x - 1}{2} \\ 12x + 2 = 10x - 5 \\ 12x - 10x = - 5 - 2 \\ 2x = - 7 \\ x = \frac{ - 7}{2} \\ x = - 3.5[/tex]

Pertanyaan Lainnya