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Importance of Brackets

Solve: 4+110...

Question

Solve:
$4 + \frac{1}{10} [- 10 \times (25 - ¯ ¯¯¯¯¯¯¯¯¯¯¯¯¯ ¯ 13 - 3) \div (- 15)]$

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Solution

Now,
$4 + \frac{1}{10} [- 10 \times (25 - ¯ ¯¯¯¯¯¯¯¯¯¯¯¯¯ ¯ 13 - 3) \div (- 15)]$
$= 4 + \frac{1}{10} [- 10 \times (25 - 10) \div (- 15)]$
$= 4 + \frac{1}{10} [- 10 \times 15 \div (- 15)]$
$= 4 + \frac{1}{10} [- 150 \div (- 15)]$
$= 4 + \frac{1}{10} [10]$
$= 4 + 1$
$= 5$

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