SOLUTION: Hello, Iam trying to show
the work for system of equations by the substitution method, can you help please? Here are the two equations.
4x+y=11
2x+5y=1
Question 999991: Hello, Iam trying to show
the work for system of equations by the substitution method, can you help please? Here are the two equations.
4x+y=11
2x+5y=1 Found 2 solutions by mananth, MathTherapy:Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
4x+y=11
y=11-4x
2x+5y=1
2x+5(11-4x) =1
2x+55-20x=1
-18x=-54
x = -54/-18
x=6
plug x
in
y=11-4x
=11-24
=-13
y=-13
4x + y = 11______y = 11 - 4x -------- eq (i)
2x + 5y = 1 ------- eq (ii)
1) Substitute 11 - 4x for y in eq (ii) to determine value of x
2) Substitute value for x into either eq (i) or eq (ii) to determine value of y
You should get: