How do you simplify 2[-50-(-74-16)] ?

1 Answer
Stefan V.
Jul 28, 2015

You use the order of operations to get a final value of 80.

Explanation:

Your expression looks like this

2 * [-50 - (-74-16)]

The order of operations (think PEMDAS) tells you that parantheses come first, followed by exponents, multiplication/divison, and addition/subtraction.

Your expression has two parantheses which must be solved first. The first paranthesis has

(-74-16) = -90

The expression now becomes

2 * (-50 - (-90)] = 2 * (-50 + 90)

Next comes the second paranthesis

(-50 + 90) = 40

The expression now becomes

2 * 40 = 80

Therefore,

2 * [-50 - (-74-16)] = color(green)(80)

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