6x+4=3x+12 => 6x-3x=12-4 => 3x=8 => x=8/3=2.666...
y=(6x-5)/3
6x+5=3x+5 5=9x+5 x=0
29
6
x=5
If: 6x-4+7 = 5 Then: x = 1/3
6x+4=3x+12 => 6x-3x=12-4 => 3x=8 => x=8/3=2.666...
30 - 12 = 18
x=4 y=1 Therefore, 6x+5y=? Just substitute, and get 6*4+5*1=29
y=(6x-5)/3
6x+5=3x+5 5=9x+5 x=0
29
6
6x+7 = -56x = -12x = -2
6x + 8 = 13, 6x = 13 - 8, 6x = 5, x = 5/6
6x + 3 = 2x + 5 4x = 2 x=1/2