What is the x-coordinate of the solution to the following system of equations? x − y = −3
x + 3y = 5

x = −2
x = −1
x = 1
x = 2

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)

5x−4≥12 or 12x+5≤−4 can you with this problem