Subtract 7 from both sides:
9 - 7 < 7 + x - 7
2 < x
Therefore, x is greater than 2.
Graph on the number line:
<-----o-------o-------o--------o----|---->
-3 -2 -1 0 1 2 3
The solution is represented by an open circle at 2 on the number line, indicating that x is greater than 2.
Solve for xx and graph the solution on the number line below.
9, is less than, 7, plus, x
9<
7+x
1 answer