3,5*(х+2 целых 1/4 равно 14

Question

3,5*(х+2 целых 1/4 равно 14

Answer 1

3,5*(х + 2 + 1/4) = 14
3,5*(х + 9/4) = 14
3,5х + (3,5*9)/4 = 14
3,5х + 7,875 = 14
3,5х = 6,125
х = 1,75
Ответ: 1,75