First, combine similar terms.
Move -7 to the right side. Note that moving a term to the other side will change its sign. So,
`t < -15 + 7`
`t < -8`
Thus, the answer is `t < -8` The graph should be all points to the left of -8 (excluded).
As for this:
Same steps are applied.
Move 12 to right side to combine with 18. The sign changed from + to -. So,
`b < 18 - 12`
`b < 6`
Thus, the answer is `b < 6` .The graph should be all points to the left of 6 (excluded).
The absolute value of three times a number, n is greater than 15. Solve the inequalites and graph.
If n>0 then
And if n<0 then
Thus graph of the solutions are represented on number line. All points on the number line right to 5 (excluded) and left to -5 (excluded).