Question

Solve the pair of linear equation by subsitution method: 3x+4y-12=0 and 6x+8y-48=0 ​

Answer 1

Step-by-step explanation:

3x + 4y -12 = 0 ....... 1

6x +8y-48= 0.......2

From 1

X =12 - 4y

------------ ....... 3

3

Sub 3 in 2

6 ( 12 -4y ) +8y -48= 0

----------

3

2 (12 -4y ) + 8y = 48

24 - 8y + 8y = 48

24 = 48

0 = 48 - 24

0 = 24

Therefore the given equation has no solution