Question

X= 4+ y
x=- 5+2y

How would I do this in steps?

Answer 1

Thus, the solution is (13, 9).

Explanation:

Because both equations have already been solved for x, we equate the two equations to eliminate x and make it easily possible to solve for y:

x = 4 + y = x= -5 + 2y

Cancelling out the x, we get:

4 + y = -5 + 2y

We need to solve this for y. To do this, subtract y from both sides. The result will be:

4 = -5 + 2y - y, or 4 = -5 + y. Then y = 9.

Substituting 9 for y in x = 4 + y, we find that x = 4 + 9, or x = 13.

Thus, the solution is (13, 9).

Check: Does (13, 9) satisfy x = -5 + 2y?

Is 13 = -5 + 18 true? YES