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2x + - 2x = 0 (zero)
Remember when you have two opposite signs, treat it as negative (-).
Also the 'x' is an unknown but fixed amount, so the 'x' in '2x' could be '3', so the 'x' in '-2x' is ALSO '3'.
Hence
2(3) + - 2(3) =
6 - 6 = 0
NB
For mixed signs#
lenpollock ∙
It is 2x+(-2x) = 0
3x + 2x - 8x + 2x = -x
-2x + 6 + 22 = -2x + 28
2x2 + 2x = 2x(x+1)
x + 2x + 6x = 9x
3x + 5x = 2x + 28x = 2x + 26x = 2x = (2/6) = 1/3
8x-4
x=1
4
14
6 + 2x + 5 = 11 + 2x
2x
It can be simplified to: 2x+33
it equals 13X.
2x+92+6x