How do you evaluate #10- ( - 8) - ( 3- 7) #?

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Answer 1 · 2017-08-09T13:31:21

See a solution process below:

First, evaluate the expression within the right parenthesis:

#10 - (-8) - (color(red)(3 - 7))#

#10 - (-8) - (-4)#

Next, rewrite both terms within parenthesis. Remember, minus a minus is a plus:

#10 - color(red)((-8)) - color(blue)((-4))#

#10 + 8 + 4#

Now, evaluate the addition operations left to right:

#color(red)(10 + 8) + 4#

#color(red)(18 + 4)#

#22#