Solve the inequality and show work: -5(t+4) ≥ 3(t-4)
Mathematics · High School · Tue Nov 03 2020
Answered on
So we have an inequality and we need to find t which is unknown
So:
-5(t+4) ≥ 3(t-4)
-5t-20 ≥ 3t-12
-5t-3t ≥ -12+20
-8t ≥ 8
now be careful here, if we add or substract a negative number, the sign doesn't change, but in this case we have to divide using a negative number
If we have to divide using a negative number, the number is change, so from > to < and vice versa
t ≤ -1