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mina [271]
3 years ago
10

How to work out 5-[5+8÷4-1]

Mathematics
2 answers:
NISA [10]3 years ago
8 0

Hey there!

5 - [5 + \frac{8}{4} - 1] \\  \frac{8}{4}   = 2 \\  5-[5+2 -1] \\ 5+2 = 7 \\   5 [ 7-1] \\ 7 - 1 = 6  \\ 5 - 6 = -1 \\ Answer: -1

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

rodikova [14]3 years ago
6 0

PEMDAS (order of operations rules) require that we perform operations in a certain order: anything inside parentheses first, followed by any exponentiation, followed by mult. and div., finally followed by addition and subtraction.

Thus, we must evaluate 5+8÷4-1 first, as it's inside parentheses. Focusing on the division first, we get 5+8÷4-1 = 5 + 2 - 1, or 6.

Then we have 5 - [6], which comes out to -1.

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