Answer:
s = 2 and t = 3
Step-by-step explanation:
Assuming you were suppose to type s instead of a,
12s + 10t = 54 -- (1)
6s + 10t = 42 -- (2)
(1) - (2) : 6s = 12
s = 2 -- (3)
Substituting (3) into (2),
12 + 10t = 42
10t = 30
t = 3 -- (4)
Therefore, s = 2 and t = 3
If this helps you, please mark brainliest!
Have a nice day!
