Question

2-1+3-7+7-5×6÷69%7=78​

Answer 1

Answer:

8

Step-by-step explanation:

-1+3-7+7-5×6÷69%7=78

8

Answer 2

To verify  : $2 - 1 + 3 - 7 + 7 - 5 \times 6 \div 69 \ \%\ 7 = 78$

Solution :

• To verify the LHS is equal to RHS firstly we have to arrange given terms in proper from   $2 - 1 + 3 - 7 + 7 - 5 \times \ 6 \times \frac{100}{69}\ \%\ 7 = 78$  
• To solve the above equation we will follow BODMAS rule.
• It is the rule used to remember the order of operations to be followed while solving expressions in mathematics.
• where,  B =  brackets

                      O =order of powers or rules  

                     D =Division  

                     M =multiplication  

                      A = addition  

                      S =subtraction  

According to above rule we will verify LHS = RHS  

• Solving for LHS :  

            $2- 1 + 3 - 7 + 7 -5 \times 6 \times \frac{100}{69 }\times\ 7 \\\\= - 300 .347826$

      Since, LHS ≠ RHS  therefore, it can't be verified.