Question

-7x + y = -30 2x -5 =y ( ), ( ) PLEASE HELP

Answer 1

Answer:

y=7x-30

2x-5=7x-30

30-5=7x-2x

25=5x

x=5

if x = 5 substitute in any of the equations

y= 2*5 -5

y=5

Answer 2

Answer:

- 7x + y = -30

2x - 5 = y

=> -7x + 2x - 5 = -30

2x - 5 = y

<=> -5x = -25

2x - 5 = y

<=> x = 5

y = 2.5 - 5 = 5

=> (x,y) = (5;5)