Question

6. Solve the equation : 3(n-5)= -21​

Answer 1

Answer:

3(n-5)=-21

n-5 = -7

n= -2

Answer 2

Answer:

$\huge \green\bigstar \: \rm{ ANSWER : } n \: = - 2$

Step-by-step explanation:

$\huge \red \bigstar \: \rm{QUESTION \: :} \\ 3(n - 5) = - 21$

$\huge \blue \bigstar \: \rm{TO \: FIND :} \: x$

$\huge \pink\bigstar \: \rm{SOLUTION \: :}$

$3(n - 5) = - 21 \\ \\ \implies \: n - 5 = \frac{ - 21}{3} \\ \\ \implies \: n - 5 = \frac{ \cancel{- 21}}{ \cancel 3} \\ \\ \implies n - 5 = - 7 \\ \\ \implies n = - 7 + 5 \\ \\ \implies n = - 2$

$\huge \orange\dag \: \rm{VERIFICATION \: :} \\ \\ \\ \huge \purple \bull \: \tt LHS \\ 3(n - 5) \\ = 3( - 2 - 5) \\ = 3 \times - 7 \\ = - 21 \\ \\ \\ \\ \huge \green\bull \: \tt RHS \\ = - 21 \\ \\ \\ \\ \rm{Therefore \: \: LHS = RHS} \\ \rm{Hence \: our \: answer \: is \: correct.}$