Question

0,4 х (5 х -6)+7,2=2 х ( х +0,6)

Answer 1

$0.4x*5x-6*0.4x+7.2=2x^{2} +1.2x 2 x^{2} - 2.4x-2 x^{2} -1.2x=-7.2 -3.6x=-7.2 x= frac{-7.2}{-3.6} x= 2$