Answer:
x<7.5
Step-by-step explanation:
step 1 subtract 4.5 by both sides.
x+4.5−4.5<12−4.5
The answer to x is infinity
there is an infinite amount of numbers that when added to 4.5 are equal or less than 12 so the whole range of numbers for x can be written as (-infinity,7.5]
