PLZ HELP THIS IS JUST 6TH MATH

Which 2 equations could be used to find the smallest integer?
1. 3x +3 = 36
2. x +3 = 36
3. x + (x +2) = 36
4, x + (x+1) + (x+2) = 36

PLZ HELP THIS IS JUST 6TH MATH Which 2 equations could be used to find the smallest integer 1 3x 3 36 2 x 3 36 3 x x 2 36 4 x x1 x2 36 class=