Math 11th grade
posted by Shana .
How to solve system of equations
5a=5
6b3c=15
2a+7c=5

from the first
a = 1
replace a with 1 in the third that will give you c
then put the value of c into the 2nd to get b 
first we will find the value of a that is a=1 tan we will put the value of a in eq3 to find c so on we wil find b by putting the value of c in eq2.