3x - 11 = x + 5
subtract x from both sides:
3x - x - 11 = x - x +5
2x - 11 = 5
add 11 to both sides:
2x - 11 + 11 = 5+11
2x = 16
divide both sides by 2 to solve for x:
2x/2 = 16/2
x = 8
x=6=x=5+x=13+x=20 x cannot = x+5. This question has no answer.
x+4x+5=5x+5
x + 6
y equals x plus 5 is the equation of a straight line in the x-y plane.
5
x=6=x=5+x=13+x=20 x cannot = x+5. This question has no answer.
x = 15
x = 5
If its x+4x+5 then: 5x+5
x+4x+5=5x+5
X= 5
x + 6
15
y equals x plus 5 is the equation of a straight line in the x-y plane.
5
x = 5
-5