x + y = 5
2x - y = 7​


Sagot :

Answer:

x= 4

y= 1

Step-by-step explanation: (elimination method)

x + y = 5  (eliminate one variable or the y by adding the equation)  

2x - y =7

3x=12 (divide both side to three)

x= 4 (value of x)

4 + y = 5 (substitute the value of x)

 y = 5 - 4

 y = 1

then check:

4+1=5                                    2(4) - 1 = 7

5=5 (correct)                         8 - 1 =7

                                                  7 = 7 (correct)

sana makatulong lol