If you are cooking or in a lab and you are using measurements and you need to cut the recipe or compounds in half or double it you need to know how to do so
Answer:
nike its observational
Step-by-step explanation:
Yes you always do.
eg x - 2 = 8
x - 2 + 2 = 8 + 2
x = 10
if we plug x = 10 into the original equation we se that this fits:-
10 - 2 = 8