Answer:
your sister would be 35
Step-by-step explanation:
Answer:
a Destiny
b depending on liquid they would be less dense
Correct me if I’m wrong, I believe you have to add all of those numbers together. Then divide after and plug in those remaining digits
Substitution
y = 2x - 12
y = -x + 3
-x + 3 = 2x - 12
+ x + x
-----------------------------
3 = 3x - 12
+ 12 + 12
-----------------------
15 = 3x
------ ------
3 3
x = 5
y = 2(5) - 12
y = 10 - 12
y = -2
The final answer is (5,-2).