2(x-100)+3x=1200 решите

Question

2(x-100)+3x=1200 решите

Answer 1

2(x-100)+3x=1200
2x-200+3x=1200
5x-200=1200
5x=1200+200
5x=1400
x=280
Ответ: x=280

Answer 2

2х - 200 + 3х = 1200
5х = 1400
х = 1400 : 5
х =280