Question

solve and check your answer n/2+n/5 =7​

Answer 1

Answer:

n(7/10) =7

n=7x10/7

n=10

Answer 2

Answer:

${\huge{\pink{\underline{\underline{Question}}}}}$

Solve and check your answer n/2+n/5 =7

${\huge{\pink{\underline{\underline{Solution}}}}}$

According to question,

$\frac{n}{2}+\frac{n}{5}=7$

$=>\frac{5n}{10}+\frac{2n}{10}=7$

$=>\frac{5n+2n}{10}=7$

$7n=7×10$

$n=\frac{70}{7}$

n=10...

${\huge{\pink{\underline{\underline{Check}}}}}$

Put the value of n in the equation and solve;

$\frac{10}{2}+\frac{10}{5}$

$=>\frac{10×5}{10}+\frac{10×2}{10}$

$=>\frac{50+20}{10}$

$=>\frac{70}{10}$

$=>7$

Here,L.H.S.=R.H.S. checked.