+1310 Solve the inequality -8r<-12.
Enter your answer as an inequality with just r on the left side. For example, if the inequality in the problem were true for all negative r, then you'd enter "r<0" (without the quotation marks). If it were true for all r greater than or equal to 3, then you'd enter "r>=3".
+33616 -8r < -12
Add 8r to both sides
0 < 8r - 12
Add 12 to both sides
12 < 8r
Divide both sides by 8
12/8 < r or 3/2 < r
This says r is greater than 3/2 so you could write it as r > 3/2 if you want r on the left.
(An alternative approach is simply to divide both sides by -8 immediately, but because you divide by a negative number you must change the < to a >)
.
+33616 -8r < -12
Add 8r to both sides
0 < 8r - 12
Add 12 to both sides
12 < 8r
Divide both sides by 8
12/8 < r or 3/2 < r
This says r is greater than 3/2 so you could write it as r > 3/2 if you want r on the left.
(An alternative approach is simply to divide both sides by -8 immediately, but because you divide by a negative number you must change the < to a >)
.
