Question

X-4y=-4; x=2,4,6. solve for y, then find the value of y for each value of x

Answer 1

Explanation:

If x - 4y = - 4, then;

Subtract x from both sides,

x - x - 4y = - 4 -x

So that,

- 4y = -4 - x

Dividing both sides by -4,

y = - (4 + x)/-4

y = 4 + x/4.

Now when x = 2,

y = 4 + 2/4, or

y = 6/4 = 3/2

When x = 4,

y = 4 + 4/4 or,

y = 8/4 = 2

When x = 6,

y = 4 + 6/4

y = 10/4 = 5/2.

...And Bob is definitely your Uncle!;

Answer 2

`(2,(3)/(2)) (4,2) (6,(5)/(2))`

Explanation:

X = 2

x - 4y = -4

(2) - 4y = -4

- 2 - 2

- 4y = -6

y = 6/4 or 3/2

X = 4

x - 4y = -4

(4) - 4y = -4

- 4 - 4

- 4y = -8

y = 2

X = 6

x - 4y = -4

(6) - 4y = -4

- 6 - 6

- 4y = -10

y = 10/4 or 5/2