Answer:it will be x= 34/7 and y= 25/7
Step-by-step explanation:4x+y=23for y:
4x+y=23
4x+y+−4x=23+−4x(Add -4x to both sides)
y=−4x+23
−4x+23foryin3x−y=11:
3x−y=11
3x−(−4x+23)=11
7x−23=11(Simplify both sides of the equation)
7x−23+23=11+23(Add 23 to both sides)
7x=34
7x
7
=
34
7
(Divide both sides by 7)
x=
34
7
Step: Substitute
34
7
forxiny=−4x+23:
y=−4x+23
y=−4(
34
7
)+23
y=
25
7
(Simplify both sides of the equation)
Answer:
x=
34
7
and y=
25
7