soal PLSV tolong dijawab

soal PLSV tolong dijawab

Jawaban:

$rm3(x - 1) + x = - x + 7$

$rm3x - 3 + x = - x + 7$

$rm 3x + x + x = 7 + 3$

$rm 4x + x = 10$

$rm 5x = 10$

$rm x = frac{10}{5}$

$rm x = red{ bold{2}}$

Penjelasan dengan langkah-langkah:

3(x – 1) + x = -x + 7

3x – 3 + x = -x + 7

3x + x + x = 7 + 3

5x = 10

x = 2