How do you solve the system of equations #a+3b=13# and #a+b=5#?
1 Answer
Mar 27, 2017
#a=1#
#b=4#
Explanation:
Given -
#a+3b=13# ---------------------(1)
#a+b=5# -------------------------(2) -----#[(1) - (2)]#
#2b=8#
#b=8/2=4#
#b=4#
Substitute
#a+4=5#
#a=5-4=1#
#a=1#
