How do you solve #2x - 3 >21#?

1 Answer
Jul 6, 2016

Answer:

#x>12#, written in Interval form, #x in (12,oo).#

Explanation:

Adding #3# on both sides, we get, #2x-3+3>21+3#, i.e., #2x>24#

Next to isolate #x# on #LHS#, we multiply throughout by #1/2#, keeping in mind that as #1/2# is #+ve#, the order will not be affected.

Hence, #x>12#, written in Interval form, #x in (12,oo).#