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2 years ago

4x + y = 23 3x - y = 11

Mathematics

2 answers:

svlad2 [7]2 years ago

8 0

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

(Divide both sides by 7)

Step: Substitute

forxiny=−4x+23:

y=−4x+23

y=−4(

)+23

(Simplify both sides of the equation)

Answer:

and y=

elixir [45]2 years ago

5 0

Answer:

Step-by-step explanation:

4x + y = 23

3x - y = 11

I got x = 34/7

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