# Exponents

If 2x=4x then find x

rose156
25 February 2019
0?
alhambra
26 February 2019
Take 2x in the left hand side to the right hand side 0 = 4x - 2x;2x =0only possible solution will be x = 0.
likhitha
27 February 2019
2x=4x then x=4/2×=2
saba.18
28 February 2019
2x=4x2x-4x=0x=0
roy_otoo
01 March 2019
2x=4x2x-4x=0-2X=0x=0/(-2)X=0
anandbabu970
02 March 2019
2x = 4x4x - 2x = 02x = 0x =0
baapsabka
06 March 2019
Hi Rose,This is a bit of a trick question so I'm not surprised it's tripped you up.The left hand side (LHS) of the equation, 2x, must be equal to the right hand side (RHS) of the equation, 4x.So if we were to subtract '2x' from both the LHS and the RHS then we should still be left with equal amounts. i.e.2x = 4x-2x   -2x0 = 2xNow it might be a bit more obvious what x is. But for the sake of clarity, let us express the equation 'in terms of x' (this just means it says x = ...). I have 2x on the RHS and I want just x (or 1x). So I will divide by 2. And of course I must do this to both sides.0 = 2x/2   /20 = x     or     x = 0I hope that helped :)
Joe B.
12 March 2019
This problem can be having 2 probabilities:1. If x of the both the sides is variable then, the answer will be 02x-4x=0-2x=0x=02. If x of both the sides is not variable (assume as x,y) the answer will be as follows:x=2y ( after dividing with 2)x:y=2:1
navya
14 March 2019
0
18 March 2019
2x=4x4x-2x=02x=0x=0
raniy
22 March 2019
2X = 4X 4X - 2X = 0 (taking 2X on other side)2X = 0=> X = 0.So the Value of X is ‘0’
laksh
25 March 2019
x will be zero.
hareemaamir
26 March 2019
x=0
mallikam
29 March 2019
2x=4x so 2x-4x=0 2x common factor so 2x(1-2)=0so X=0