Question

Which is the solution to the system

4x + y = 0

x - y = 5





Explain/Show Work

Answer 1

x = 1

y = -4

Explanation:

if you solve for y

y = -4x

plug this into the other equation

x - -4x = 5

simplify

5x = 5

x = 1

plug x into the fist equation

4(1)+y = 0

y = -4