Question

12s + 10t = 54 6s + 10t = 42 What is a and what is t

Answer 1

Answer:

First equation has extra 6s and this extra 6s=54-42=12

6s=12. s=2

Step-by-step explanation:

6*2+10t=42 ........ 10t=30 t=3

Answer 2

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

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