2(x+3)+5(x+1) 9(7+y)+8(6+y)4(3x+23)+7(6+5x)12(9+8y)+3(11+6y)

Question

2(x+3)+5(x+1)
9(7+y)+8(6+y)
4(3x+23)+7(6+5x)
12(9+8y)+3(11+6y)

Answer 1

1) 2х+6+5х+5=2х+5х+6+5=7х+11

Comments

2) 63+9у+48+8у=63+48+9у+8у=111+17у