Question

simplify the following expressions d) -120 = [-45 - {15 -10 ~ (-18 - 15)}]​

Answer 1

Answer:

[-45 - {15 -10 ~ (-18 - 15)}]=-17

Step-by-step explanation:

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Answer 2

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$\bf \: 18 + ( - 15 + 3 \: of( - 51 \div 3 + 62 - (5 \times 5))$

$\bf= 18 - 15 + 3 \times \frac{ - 51}{3 + 62 + 5 \times 5}$

$\bf= 18 - 18 \times \frac{ - 51}{65 + 25}$

$\bf= 0 \times \frac{ - 51}{90}$