SOLUTION: Solve by substitution: y=-1-4x 20x+5y=-5 A. (–5, 1) B. No solution C. Dependent, D. (–4, –3) E. (–6, 5)

Algebra ->  Expressions-with-variables -> SOLUTION: Solve by substitution: y=-1-4x 20x+5y=-5 A. (–5, 1) B. No solution C. Dependent, D. (–4, –3) E. (–6, 5)      Log On


   

Question 1053315: Solve by substitution:
y=-1-4x
20x+5y=-5


A.
(–5, 1)

B.
No solution

C.
Dependent,

D.
(–4, –3)

E.
(–6, 5)
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
JUST SUBSTITUTE what you have. Simplify the second equation before doing the substitution.

%281%2F5%29%2820x%2B5y%29=%281%2F5%29%28-5%29

4x%2By=-1

4x%2B%28-1-4x%29=-1

-1=-1--------------What does this mean?

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

Solve by substitution:
y=-1-4x
20x+5y=-5


A.
(–5, 1)

B.
No solution

C.
Dependent,

D.
(–4, –3)

E.
(–6, 5)
Correct answer: highlight_green%28matrix%281%2C2%2C+CHOICE%2C+C%29%29