Question

3x + 5y =34
-2x + 2y =4​

Answer 1

Respuesta:

y= 5

x= 3

Explicación paso a paso:

3x+5y= 34

3x= 34-5y

x= 34-5y/3

-2x+2y=4

-2x= 4-2y

x= 4-2y/-2

34-5y/3 = 4-2y/-2

3(4-2y) = -2(34-5y)

12-6y = -68+10y

-6y-10y = -68-12

-16y = -80

y= -80/-16

y= 5

3x+5(5) =34

3x+25 = 34

3x = 34 - 25

3x = 9

x = 9/3

x= 3