6 + 2x = x - 6 6 + x = -6 x = -12
12 = 2x + 6 subtract 6 from both sides 6 = 2x divide both sides by 2 3 = x
if: 2x + 6 = -6 then: 2x = -12 x = -6 if: 5x + 7y = 1 then: 5(-6) + 7y = 1 7y = 31 y = 31/7
They are parallel lines.
2x must equal 12 so x is 6.
2x + 1 = 13; 2x = 12; x = 6
6 + 2x = x - 6 6 + x = -6 x = -12
6 + 2x = x - 6 2x - x = -6 -6 x = -12
2x-3=4x+9 -2x-12=0 2x=-12 x=-6
12 = 2x + 6 subtract 6 from both sides 6 = 2x divide both sides by 2 3 = x
If: 12 = 2y+x then y = -1/2x+6 So: y = 2x+4 and y = -1/2x+6 which means that they are perpendicular lines
-2(5x+3)-2x<-3(2x-4)+2
if: 2x + 6 = -6 then: 2x = -12 x = -6 if: 5x + 7y = 1 then: 5(-6) + 7y = 1 7y = 31 y = 31/7
They are parallel lines.
x=1
2x + 4 = 16 2x = 16 - 4 2x = 12 x = 12/2 x = 6
2x must equal 12 so x is 6.