Question

solve for X and y
2x+y=7 ; 4x-3y + 1=0​

Answer 1

Answer:

x=2 and y=3

Step-by-step explanation:

2x+y=7

y=7-2x-----1.

And, 4x-3y+1=0

Substituting value of y in this equation:

4x-3(7-2x)+1=0

4x-21+6x+1=0

10x-20=0

10x=20

x=20/10

x=2

Substituting value of X in equation 1.:

y=7-2×2=7-4=3

Answer 2

2x+y=7-----(1)

4x-3y+1=0- - -(2)

2x+y=7

+4x-3y=-1

_________

6x-2y=6

2(3x-y)=6

3x-y=3---------(3)

(1) and (3)

2x+y=7

+3x-y=3

________

5x=10

x=10/5

x=2------Answer.

substituting x in (1)

2(2)+y=7

4+y=7

y=7-4

y=3-----Answer.