помогите))

Question

помогите))

Answer 1

2(x+2) = 9(x-3)
2x+4 = 9x-27
2x-9x = - 27 - 4
-7x = -31
x= -31 : (-4)
x= 31/4= 7,75

Comments

Ой, извините x = -31 : (-7) x=31/7=4целых 3/4