Question

The solution of the equation 7n + 5 = 12 is

0

-1

1

5


​

Answer 1

To Find :

• value of n

Solution :

Given equation : 7n + 5 = 12

7n + 5 = 12

7n = 12 - 5

7n = 7

n = 7/7

• n = 1

• Hence, value of n = 1

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Answer 2

SOLUTION

TO CHOOSE THE CORRECT OPTION

The solution of the equation 7n + 5 = 12 is

• 0

• - 1

• 1

• 5

EVALUATION

Here the given equation is

$\displaystyle \sf{ 7n + 5 = 12 }$

We solve for n as below

$\displaystyle \sf{ 7n + 5 = 12 }$

$\displaystyle \sf{ \implies 7n = 12 - 5 }$

$\displaystyle \sf{ \implies 7n =7 }$

$\displaystyle \sf{ \implies n = \frac{7}{7} }$

$\displaystyle \sf{ \implies n = 1 }$

So the required solution is n = 1

FINAL ANSWER

Hence the correct option is n = 1

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