Answer:
<h2>x = -4 and y = -1 → (-4, -1)</h2>
Step-by-step explanation:

Answer:
27
Step-by-step explanation:
Let's call boys and girls 3x and x respectively. Since 3x + x = 36, x = 9. Boys = 3x = 3 * 9 = 27.
Answer:
Step-by-step explanation:
1
The opposite of subtraction is addition