which two out of the 6 have no solution

2x+3=2x+7
7x+3=7x+3
4x+22=8x+10
5x+5=5x+4
3x+18=5x+8
3(4x+8)=4(3x+6)

The equations that have no solution are:

1) 2x+3=2x+7
This equation simplifies to 3 = 7, which is not true. Therefore, there is no solution.

2) 4x+22=8x+10
This equation simplifies to 12 = 12. This is always true, so it has infinitely many solutions.

just choose two out of the 6 that have no solution

Apologies for the confusion. The two equations that have no solution are:

1) 2x+3=2x+7
2) 5x+5=5x+4

what is the answer to

7x+3=7x+3

The equation 7x + 3 = 7x + 3 simplifies to 0 = 0. This is always true, so it has infinitely many solutions.