Question

exercitiul 2 repedeeeeeeeee​

Answer 1

Salut,

Ce e așa de greu ?

9x -- 15x + 60 = 30, deci --6x = --30, deci x = --30/--6 = +5.

Green eyes.

Answer 2

9x-5(3x-12)= 30

9x-5•3x-5•(-12)=30

9x-15x+60= 30

9x-15x= 30-60

-6x= -30

x= -30/-6

x= 5