Question

упростите выражения 2(x+3)+5(x+1)

Answer 1

2(х+3)+5(х+1)
2х+6+5х+5
7х+11

Answer 2

2(х+3)+5+(х+1)=2х+6+5х+5=7х+11

Answer 3

7x+11
x = - 11/7
Вроде так.