-6x = 6y + 6
-6x = 3y - 12
Subtracting the second from the first gives:
-6x - -6x = 6y - 3y + 6 - -12
→ 0 = 3y + 18
→ 3y = -18
→ y = -6
Substituting in the first:
-6x = 6y + 6
→ -6x = 6(-6) + 6
→ -6x = -36 + 6
→ -6x = -30
→ x = 5
Thus x = 5, y = -3 solve the simultaneous equations.
6x plus 3y minus 2x plus 5y equals 4x plus 8y.
y=(6x-5)/3
Perpendiculat straight lines.
The slope is -2
(5,7)
30 - 12 = 18
perpendicular
6x plus 3y minus 2x plus 5y equals 4x plus 8y.
no
y=(6x-5)/3
(9,2)
Perpendiculat straight lines.
(x, y) = (3, 7) is a solution.
The slope is -2
6x+3y = -9 3y = -6x-9 y = -2x-3 Therefore the perpendicular slope is 1/2
6x plus 4y
-x+3y+6x-6y=5x-3y