How do you solve the following linear system: #2x + y = -4, y = -3x + 2, #?
1 Answer
Apr 22, 2018
#x=6#
#y=-16#
Explanation:
Given -
#2x+y=-4# ---------------- (1)
#y=-3x+2# ---------------(2)
Substitute
#2x+(-3x+2)=-4#
#2x-3x=2=-4#
#-x=-4-2=-6#
#x=6#
Substitute
#y=-3(6)+2=-18+2=-16#
#y=-16#
