27 March, 22:53
Simplify the expression
27 March, 23:17
Remove the lines, and it's regular addition.
-3+3 would equal 0.
28 March, 00:04
The lines mean absolute value. Absolute value can't be negative, so it turns any negative number positive. The absolute value of - 3 is 3, and the absolute value of 3 is 3, so you're just adding 3 and 3 together, which makes your answer 6
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» Simplify the expression |-3|+|3|