How do you simplify #5(3+12) + 42(23-4) # using PEMDAS?

1 Answer
Jul 27, 2016

Answer:

See explanation

Explanation:

We must use the PEMDAS method. Let's solve for the parentheses first:

#3+12=15#
#23-4=19#

We now have #5(15)+42(19)#

Next is multiplication:

#5*15=75#
#42*19=798#

#75+798#

From here, it's simple addition: #75+798=873#