Question

Упростите выражения
1) 2(x+3)+5(x+1)=

2) 9(7+y)+8(6+y)=

3) 4(3x+23)+7(6+5x)

4)12(9+8y)+3(11+6y)

Answer 1

1) 2(x+3)+5(x+1)=2х+6+5х+6=7х+12

2) 9(7+y)+8(6+y)=63+9у+48+8у=111+17у

3) 4(3x+23)+7(6+5x)=12х+92+42+35х=47х+134

4)12(9+8y)+3(11+6y)=108+96у+33+18у=141+114