What is the value of the x variable in the solution to the following system of equations?

4x + 2y = 12
x – y = 3

0
−3
3
2

Ineed ! the person who answers and shows their work on they got the answer first will be marked the !

Beth divided 9 ounces of her granola recipe into 4 equal-sized amounts. she placed the amounts into individual bowls. the fraction 9/4 represents the number of ounces of granola in each bowl. which other number represents the amount of granola beth has in each bowl? (a) 1 1/4 (b) 2 1/4 (c) 1 3/4 (d) 3 3/4 i need !

What is the perimeter of an equilateral triangle if each side is (x+3)?