Hi,

Now just divide both sides of equation by -4.

Simplify:

Decimal form:

Hope this helps.
r3t40
First off, we'll convert the mixed fractions to "improper",

Answer:
250 nickles
Step-by-step explanation:
Nickles and dimes are coins with different currency values. One nickel(N) is equal to 5 cents while one dime(D) is equal to 10 cents. The ratio of nickel:dime is 5:7, to put into the equation it will be:
N/D= 5/7
7N=5D ---> 1st equation
There are 350 dimes, the equation will be:
D=350 ----> 2nd equation
We can find out the number of nickels by substitute the 2nd equation into the first. The calculation will be
7N=5D
N= 5D/7
N=5(350)/7
N= 250
Each term is being divided by -3, so the next three terms would be:
-1/3, 1/9, -1/27