HELP NEEDED PLEASE !! WILL GIVE BRAINIEST What equation combines with the given equation to form a system of equations with the solution x = 3 and y = 9? x + 2y = 21

A. 4x + 6y = 64

B. 2x + y = 36

C. 4x + y = 21

D, 3x + 2y = 28

C

Step-by-step explanation:

x + 2y = 21

4x + y = 21

Multiply the second equation by -2 to get:

 -8x - 2y= -42  {Add this to the original equation; y's will be eliminated}

+  x + 2y = 21

-7x = -21

x = 3

see if y = 9 works . . .

3 + 2(9) = 21  and it does

the correct answer is a) "catholic church".

the proposals that liberals in mexico made during 1855 were particularly focused on a person's individual rights, such as the freedom of speech, the freedom of conscience, freedom of assembly, and the right to possess weapons.

when the constitution was formally published 2 years later (1857). it also contained an article which permitted education free from any religious influence, the removal of the catholic church institutional privileges, and the sale of property belonging to the church. all of these provisions were clearly against the catholic church interests.