3x + 6y = 5
-6x + 9y = 4 multiply by 2 the first equation
2(3x + 6y = 5)
-6x + 9y = 4
6x + 12y = 10
-6x + 9y = 4 add both equations
21y = 14 divide by 21 to both sides
y = 14/21 simplify
y = 2/3
3x + 6y = 5 replace 2/3 with x
3(2/3) + 6y = 5
2 + 6y = 5 subtract 2 to both sides
6y = 3 divide by 6 to both sides
y = 1/2
Thus, the solution point is (1/2, 2/3).
3x + 6y + 6x = 9x + 6y which can be factorised as 3(3x +2y)
x = 6 and y = -2
2X + 6Y = 12 3X + 9Y = 18 try elimination - 3(2X + 6Y = 12) 2(3X + 9Y = 18) - 6X - 18Y = - 36 6X + 18Y = 36 ================= I will say this system is dependent and an infinite number of solutions can be found.
6x + 3y + 6y - 2x = (6x - 2x) + (3y + 6y) = 4x + 9y
y-3x+6y=12 7y=3x+12 y=3x/7 +12/7
3x + 6y + 6x = 9x + 6y which can be factorised as 3(3x +2y)
4x+6y=62 -6x+6y=-18 what is the ordered pair
x = 6 and y = -2
2X + 6Y = 12 3X + 9Y = 18 try elimination - 3(2X + 6Y = 12) 2(3X + 9Y = 18) - 6X - 18Y = - 36 6X + 18Y = 36 ================= I will say this system is dependent and an infinite number of solutions can be found.
(0,7)
no
3x-6y=-8
6y = 3x + 4 y = 3/6x + 4/6 or y = x/2 + 2/3
3x + 6y = 363x - 6y = 0 add both equations6x = 36x = 63x - 6y = 03(6) - 6y = 018 - 6y = 018 = 6y3 = yThe solution point is (6, 3).
Collect like terms: 3x - x + 4x - 4y + 6y + 2 = 6x + 2y + 2
The slope of -x plus 6y is equals to 12 is said to be (2 + 1/6x).
6x + 3y + 6y - 2x = (6x - 2x) + (3y + 6y) = 4x + 9y