How do use solve 3x+y=5
2x-2y= -2

Step-by-step explanation:

3x + y = 5             —> 2 (3x + y = 5)

2x - 2y = -2          —>    2x - 2y = -2

6x + 2y = 10

2x - 2y = -2    then you add the like terms

8x = 8

———    then divide by 8

8

x = 1

is there answer choices?

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: