Bantu ya kak no 2,4,5,7,9​

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Bantu ya kak no 2,4,5,7,9​

Bantu ya kak no 2,4,5,7,9​

Jawab:

2.

30 + 6x = 12

6x = 12 – 30

6x = -18

x = -18 ÷ 6

x = -3

4.

4x + 18 = 6 – 2x

4x + 2x = 6 – 18

6x = -12

x = -12 ÷ 6

x = -2

5.

4(2y – 3) = 4y + 10

8y – 12 = 4y + 10

8y – 4y = 10 + 12

4y = 22

y = frac{22}{4}

y = 5frac{1}{2}

7.

3(2x – 5) + 2(4x + 7) = 5(3x + 1)

6x – 15 + 8x + 14 = 15x + 5

-15 + 14 – 5 = 15x – 6x – 8x

-6 = x

9.

pertanyaannya terpotong di foto