Question

solve the quation using substitution method: x-2y=1, y=5-3x​

Answer 1

Explanation:

x-2y=1

x=2y+1 (I)

y=5-3x

Replace the value of x with (I)

therefore,

y=5-3(1+2y)

y=5-3-6y

y+6y=2

7y=2

y=2/7

therefore,

x=2(2/7)+1

x=13/7

Answer 2

Answer:

Solve the quation using substitution method: x-2y=1,