Question

x+2y=14
3x-4y=2
by substitution method

please solve on copy​

Answer 1

Answer:

3(x+2y=14)

1(3x-4y=2)

3x+6y=42

3x-4y=2

sub both equation

10y=40

y=4

3x-4(4)=2

3x-8=2

3x=2+8

3x=10x=10/3

Answer 2

Answer:x=6 y=4

Step-by-step explanation:

x+2y=14

multiply 2 on both side

2x+4y=28   lets name it eq 1

3x-4y=2 (given) lets name it eq 2

adding both eq 1 and 2

2x+4y+3x-4y=28+2

5x=30

x=6

given x+2y=14

since x =6

6+2y=14

2y=8

y=4