Question

Look at the screenshot

Answer 1

i got you

Explanation:

first you will make the easiest equation into y=mx+b

2x=5y=20

subtract 2x from it self and 20, you will eliminate the 5 but keep the y then you will get y=2x+20

then you will substitute it into the y in the other equation 4x+5(2x+20)=30

after doin that you will multiply 5 by both the number in the parenthesis

4x+15x+100=30 add like terms 4x+15x =

19x+100=30 subtract 100 fromm itself and 30 you will get -70

-70 divided by 19x then you will get your answer

Answer 2

x = 5

y = 2

Explanation:

multiply by -2 the second equation and add the first equation to eliminate "x"

`4x+5y=30\\-4x-10y=-40`

_______________

`-5y=-10\\y=(-10)/(-5) =2`

To find "x", substitute the value of "y" in any equation. I do it in the first

`4x+5(2)=30`

`4x+10=30`

`4x=30-10\\x=20/4=5`

Hope this helps