Question

3x + 4y = 10 and 2x - 2y = 2 by Elimination and subtitution method​

Answer 1

3x+4y=10------>1

2x-2y=2-------->2

3x+4y=10

2×1=4x-4y=4

______

7x=14

______

7x=14

x=14/7

x=2

sub x=2 in 2

2x-2y=2

2(2)-2y=2

4-2y=2

-2y=2-4

-2y=-2

y=1

Answer 2

Answer:

X=2

y= 1

Step-by-step explanation:

3x+4y=10 ---- (1)

2x-2y=2 ----(2)

now equation-2 ×2

therefore (2x-2y=2)2

we get, 4x-4y=4 -----(3)

now add equation 1 and 3

3x+4y=10

4x- 4y=4

-------------

7x = 14

therefore x =2

now put the value of x in equation 1

therefore we get y=1

X=2

y= 1