Question

Rezolvați ecuațiile a)
$5x - 2 = - 7$

b)
$4 - 2.3x = - 0.6$

c)
$\sqrt{2} + 2x = \sqrt{18}$
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Answer 1

A) 5x=-7+2 => 5x=-5 => x=-5
B) -2,3x=-0,6-4 => -2,3x=-4,6 => x=2
C)rad2 +2x =3rad2 => 2x= 3rad2-rad2 => 2x=2rad2 => x=rad2