Tolong kerjain nomor 4 dan 5 tolong ya.

Tolong kerjain nomor 4 dan 5 tolong ya.

Jawab:

Penjelasan dengan langkah-langkah:

Gambar Jawaban

nomor 4

$frac{x + 2}{3} = 5 - frac{x}{2}$

—————- × 6

2(x + 2) = (5 × 6) – (x × 3)

2x + 4 = 30 – 3x

2x + 3x = 30 – 4

5x = 26

x = 26/5

nomor 5

$frac{x - 2}{7} - frac{3 + 5x}{2} = frac{2x- 1}{4}$

————————— × 28

4(x – 2) – 14(3 + 5x) = 7(2x – 1)

4x – 8 – 42 – 70x = 14x – 7

4x – 70x – 14x = -7 + 8 + 42

-80x = 43

x = -43/80