5x + 2y = 4 (Eq1) -5x + 2y = -10 (Eq2) Add the two equations 4y = -6 so y = -1.5 x = (4 - (2 x -1.5))/5 = (4 + 3)/5 = 7/5 = 1.4 Check: 5 x 1.4 + 2 x -1.5 = 7 - 3 = 4; -5 x 1.4 + 2 x - 1.5 = -7 - 3 = -10 QED
The equation is -2y + 16 = 10
(2, -1)
(4, -1)
2y+5y=10 7y=10 y=10/7
parallel
(12, 1)
x = -8, y = 10
10-y=2y+3 10-3=2y+y 7=3y 7/3=y
10-2y
4x+2y = 20 2y = -4x+20 y = -2x+10
3x+2y-5=0 3x+2y=5 Im lost im only 12 work out the rest hope i helped
This means that 2y - 3 = 2y + 4 which is not possible.