Question

solve by substitution method:- 3x-2y=1and 3x+4y=7​

Answer 1

Step-by-step explanation:

3x-2y=1

3x+4y=7

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0-6y=-6 y=1

sub in eqn 1 3x-2=1

x=1

Answer 2

Answer:

x = 1 and y = 1

Step-by-step explanation:

3x - 2y =1

3x = 1 + 2y

x = 1 + 2y/3

3(1 + 2y/3) + 4y = 7

3 + 6y/3 + 4y = 7

3 + 6y + 12y /3 = 7

3 + 18y = 21

18y = 21 - 3

18y = 18

y = 1

3x - 2 = 1

3x = 3

x = 1