Question

Solve for x y=7x+5
y = 9x+4

Answer 1

1.
`x = - (5)/(7)`

2.
`x = - (4)/(9)`

Explanation:

`y = 7x + 5 \\ 0 = 7x + 5 \\ - 7x = 5`

`\boxed{Answer:{\boxed{\green{x = - (5)/(7)}}}}`

`y = 9x + 4 \\ 0 = 9 x + 4 \\ - 9x = 4`

`\boxed{Answer:{\boxed{\green{x = - (4)/(9) }}}}`

Answer 2

x = 1/2

Explanation:

y = 7x+5

y = 9x+4

7x+5 = 9x+4

1=2x

x = 1/2 = 0.5