Math, asked by noorbu, 1 year ago

solve by substitution method s-t=3
and s/3+t/2=6

Answers

Answered by AdityaMSR
19
from equation (1) we get s = t + 3 
Putting that result in equation (2), we get 
(t+3)/3 + t/2 = 6
On taking lcm, 2(t+3) + 3t = 6*6 
5t + 6 = 36 ⇒ 5t = 30 ⇒ t=6 
Putting this, we get s = 3+6 = 9
Thus, s=9 and t = 6

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