Question

Please help with these, will give brailiest if correct

Answer 1

Well, Let's solve the problem of 3ₓ + 2y = 7.

We got to add -2y of both sides: 3ₓ + 2y + -2y = 7 + -2y

3ₓ = -2y + 7

Then after that we got to divide both sides of 3:
`(3x)/(3)` =
`(-2y + 7)/(3){`

ₓ =
`(-2)/(3) y` +
`(7)/(3)`

Which your answer will be is ₓ -
`(-2)/(3) y` +
`(7)/(3)`. Well, Let's solve ₓ - 2y = 5. You got to add -x of both sides: ₓ - 2y + -x = 5 + - x -2y = -x + 5. Then you do the same thing divide them both sides:
`(-2)/(-2)` =
`(-x + 5)/(-2)`, Than: y =
`(1)/(2) x` +
`(-5)/(2)`. So, Basically your answer will be is y =
`(1)/(2) x` +
`(-5)/(2)`. Good Luck!

Answer 2

y = -1

x = 3

Explanation:

First, change one of the equation into y = mx + b form.

3x + 2y - (2y) = 7 - (2y)

3x/(3) = (7 - 2y)/(3)

x = 7/3 - 2/3y

Now, plug this equation into the x of the other equation.

(7/3 - 2/3y) - 2y = 5

7/3 - (7/3) - 8/3y = 5 - (7/3)

(-8/3y)/(-8/3) = (8/3)/(-8/3)

y = -1

To find x, substitute -1 for y in either equation and solve.

x - 2(-1) = 5

x + 2 - (2) = 5 - (2)

x = 3