Răspuns :
54-7(x+2)=3(x+20)
54 - 7 · x + 7 · 2 = 3 · x + 3 · 20
54 - 7x + 14 = 3x + 60
54 + 14 - 60 = 3x + 7x
68 - 60 = 10x
8 = 10x
x = [tex]\frac{8}{10}[/tex]
Sper că te-am ajutat!
Succes!
Răspuns:
54-7(x+2)=3(x+20)
54-7x-14=3(x+20)
54-7x-14=3x+60
40-7x=3x+60
40-7x-3x=60
7x-3x=60-40
7x-3x=20
-10x=20 / ÷(-10)
x= -2