The number of nickels that Milad has is twelve more than the number of dimes that miss o has. If they both have the same amount of money how many dimes does miss o have

So n=number of nickles

d=number of dimes

n is 12 more than d so

n=12+d

but they have same amount of money so

n times 5=worth of nickles

d times 10=worth of dimes

5n=10d

divide both sides by 5

n=2d

subsitute

n=2d

n=12+d

2d=n=12+d

2d=12+d

subtract d from both sides

d=12

subsitute

n=12+d

n=12+12

n=24

24 nickles

12 dimes