Question

(2) Solve :3n + 7 = 25​

Answer 1

Answer:

$\huge \bf \: given$

3n + 7 = 25

$\huge \bf \: solution$

$3n \: + 7 = 25$

$3n \: = 25 - 7$

$3n \: = 18$

$n \: = \frac{18}{3}$

$n \: = 6$

$\huge \bf \: verification$

$3n \: + 7 = 25$

$3 \times 6 + 7 = 25$

$18 + 7 = 25$

$25 = 25$

$\bold { \:LHS \: = \: RHS} \:$