find x when, 2x=128 2x=128 /2 /2 x=128 /2 x=64 then check your answer by doing the following if x=64, then what is 2x? 2(64)=? or 2 * 64=? or 2 x 64=? 2 times 64 equals 128!
I believe the converse is: if 2x equals 6 then x equals 3 inverse: if x doesn't equal 3 then 2x doesn't equal 6 contrapositive: if 2x doesn't equal 6 then x doesn't equal 3
66
The answer is 32.
X equals to 8
No, x + x equals 2x. x times x equals x2. (x times x equals x squared.)
It doesn't; it equals 2x. Only if x = 0 does 2x = x.
If 4x-2 equals 2x-34 then x is equal to -16. 4x is equal to 2x-322x is equal to -32x is therefore -16
X + ( 2Y - 2X - Y ) is equal to Y - X
3x+1+2x-2 = 64 3x+2x = 64-1+2 5x = 65 x = 13
x = 8
4x+9=2x-6 2x=-15 x=-7.5 x equals -7.5.