Question

`\purple{3 - 8 + 1 / 7 * 5 - 1 = ?}`

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Answer 1

The answer is -5.29.

Step-by-step explanation:

Solution :

To solve the above equation we will follow the BODMAS rule.

• 
  `\small\pink\bull` BODMAS is an order of mathematic operations.
• 
  `\small\pink\bull` BODMAS rule is to be followed while solving expressions in mathematics.

It stands for :

`\quad\begin{gathered} \small \begin{array}{l} \star \: \rm B= bracket \\\star \: \rm O= order \: of \: power \: \\\star \: \rm D= division \\\star \: \rm M= multiplication \\ \star \: \rm A= addition \\ \star \: \rm S=subtraction \end{array}\end{gathered}`

Solving this question by bodmas rule :

`{ = \tt{3 - 8 + 1 / 7 * 5 - 1 }}`

`{ = \tt{3 - 8 + (1)/(7) * 5 - 1 }}`

`{ = \tt{3 - 8 + 0.142* 5 - 1 }}`

`{ = \tt{3 - 8 + 0.71 - 1 }}`

`{ = \tt{ - 5 + 0.71 - 1 }}`

`{ = \tt{ - 4.29 - 1 }}`

`{ = \tt{ - 5.29 }}`

`\star\underline{\boxed{\tt{\red{ - 5.29 }}}}`

Hence, the answer is -5.29.

`\rule{300}{1.5}`

Answer 2

-5.29

Explanation:

You have to solve this according to BODMAS theory.

That is,

B ⇒ Brackets

O ⇒ Of

D ⇒ Division

M ⇒ Multiplication

A ⇒ Addition

S ⇒ Subtraction

Let us solve now.

3 - 8 + 1 ÷ 7 × 5 - 1

3 - 8 + 0.142 × 5 - 1

3 - 8 + 0.71 - 1

-5 + 0.71 -1

-4.29 - 1

-5.29

Hope this helps you :-)