Question

Rezolvati:
[(2X+0,7) x 5 - 4,5 ] x 10 - 4 = 1

Answer 1

$[(2*x+0.7)*5-4.5]*10=5$
$(10*x+3.5-4.5)*10=5$
$(10*x-1)*10=5$
$100*x-10=5$
$100*x=15$
$x= \frac{15}{100} =0.15$

Answer 2

[(2x+0,7)×5-4,5]×10 =5 [(2x+0,7)×5-4,5 = 0,5 [ (2x+0,7) ×5 =5 (2x+0,7) =1 2X =0,3 X=0,15