Question

Find the equation of line through the point of intersection of 3 x + 4 y - 7 is equal to zero and x minus y + 2 is equals to zero and whose slope is 5

Answer 1

Answer:

3x+4y-7=0 _(1)

x-y+2=0 _(2)

from 1 and 2 by elimination method

(3x+4y-7=0)×1

(x-y+2)×3

3x+4y-7=0

-3x-3y+6=0

+ -

7y-13=0

7y=13

y=13/7

put y=13/7 in 2 equation

x-13/7=-2

(7x-13)/7=-2

7x-13=-14

7x=-1

x=-1/7