Answer:
we will substitute x=10-2 y in the first equation.
Step-by-step explanation:
We are given two equations as:
3 x+y=8
and -x-2 y= -10
to "isolate" means we have to set apart one thing from the others.
here we have to isolate 'x' in the second equation to use the substitution method so we have
x=10-2 y from the second equation.
Hence we will substitute x=10-2 y into the first equation to get the solutions of the given system of equations with the help of substitution method.