Question

resolva as equaçao 3(x-1)-(x-3)+5(x-2)=18

Answer 1

3(x-1)-(x-3)+5(x-2)=18

3x-3-x+3+5x-10=18

3x-x+5x-10 =18

7x-10=18

7x=18 +10

7x=28

28/7 = 4

x=4

Espero ter ajudado =)