Math, asked by sp6652919, 9 months ago

substitution method S-t=3 2S+3t=36​

Answers

Answered by akshita3850
9

Answer:

s= 9

t= 6

Step-by-step explanation:

t=s-3

put this into eq 2

2s+ 3(s-3)=36

2s + 3s -9 =36

5s = 36+9

5s = 45

s =9

then

put s=9 in eq 1

t = 9-3

t = 6

Answered by rupakvivek
5

Answer:

S=9 and t=6

Step-by-step explanation:

S-t=3-->1st equation

2S+3t=36-->2nd equation

S=3+t (from 1st equation)-->3rd equation

Substitute S=3+t in 2nd equation

2(3+t)+3t=36

6+2t+3t=36

2t+3t=36-6

5t=30

t=30/5

t=6

Substitute t=6 in 3rd equation

S=3+6

S=9

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