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

Question

577 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-08-09T13:31:21

See a solution process below:

First, evaluate the expression within the right parenthesis:

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

$10 - (- 8) - (- 4)$ $10 - (-8) - (-4)$

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

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

$10 + 8 + 4$ $10 + 8 + 4$

Now, evaluate the addition operations left to right:

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

$18 + 4$ $color(red)(18 + 4)$

$22$ $22$

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