Question

$5x + ( -2)$
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Answer 1

$\huge\mathcal\red{HELLO!!}$

$5x - 2 = 0 \\ 5x = 2 \\ x = \frac{2}{5}$

Hope it helps you

Answer 2

5x-2=0
5x=0+2=2
5x=2
x=2/5