Answer:
3x +4x +5x +7x +2
19X+2
THE ANSWER IS 19x+2
Step-by-step explanation:
108<9•12
^. ^
3•3 2•6
^. ^
1•2 3•2
1st:x
2nd x+2
3rd: x+4
(x)+(x+2) = 3(x+4)-31
distribute
2x+2 = 3x+12-31
2x+2 =3x-19
subtract 2x from each side
2 = x-19
add 19 to each side
21 =x
Answer: 21,23,25