Question

Solve for x and yBy substitution method
x-4y=13, 3x+2y+3=0

Answer 1

x - 4y = 13. . ----(1)

3x + 2y + 3 = 0. ----(2)

From (1), we get : x = 13+4y. ----(3)

Put the value of x in (2)

3(4y+13) + 2y + 3 = 0

12y + 39 + 2y + 3 =

14y = -42

y = -42/14 = -3

Put the value of y in (3), we get x = 13+4(-3) = 13-12 = 1