In which of the following expressions does the “x” term have a coefficient of 1?

2×2+x−92 x squared plus x minus 9

2×2−3x+12 x squared minus 3 x plus 1

3×2−x−53 x squared minus x minus 5

x2+2x+7x squared plus 2 x plus 7

2×2+x−92 x squared plus x minus 9

2×2−3x+12 x squared minus 3 x plus 1

3×2−x−53 x squared minus x minus 5

x2+2x+7x squared plus 2 x plus 7