How do you evaluate #4( 20+ 12) \div ( 4- 3)#?

1 Answer
Mar 10, 2018

#128#

Explanation:

Using the order of operations, do the operations inside the parenthesis first, followed by multiplication/division and finally addition/subtraction.

Red operators indicate the current step.

#4(20color(red)+12)-:(4color(red)-3)#

#=4(32)-:(1)#

Multiply next (from left to right)

#=128-:1#

This is simply #128#