Is #(5, 4)# a solution of #5x - 3y = 13# and #5x + 4y = - 9#?
1 Answer
Oct 10, 2017
Explanation:
#"to determine if "(5,4)" is a solution to both equations"#
#"substitute "x=5" and "y=4 " into the equations and if they"#
#"are satisfied then "(5,4)" is a solution"#
#(5xx5)-(3xx4)=25-12=13larrcolor(blue)" True"#
#(5xx5)+(4xx4)=25+16=41larrcolor(blue)" False"#
