Question

Rezolvati-mi si mie exercitiul 6; punctele a si d.Sunt ecuații.

Answer 1

a)4x-12=18
4x=18+12
x=30:4
x=7,5

Answer 2

a)4x-12=18⇒4x=18+12⇒4x=30⇒x=30|4⇒x=15|2
d)55-6x=43⇒-6x=-55+43⇒-6x=-12⇒x=-12|-6⇒x=2
succes