Question

Решите уравнение x+2x+3+x=51

Answer 1

x+2x+3+x=51,4х + 3 = 51,
4х = 51 - 3,
4х = 48,
х= 48: 4
х = 12

Answer 2

x+2x+3+x=51,4х + 3 = 51,
4х = 51 - 3,
4х = 48,
х= 48: 4
х = 12

Answer 3

х+2х+3+х=51
4х=51-3
4х=48
х=48:4
х=12
проверка
12+2*12+3+12=51
51=51