Question

qual é o valor de x?
x+x+25+x+55+x-10=360

Answer 1

x+x+25+x+55+x-10=360
4x=360+10-55-25
4x=360+10-80
4x=360-70
4x=290
x=290/4 (:2)
x=145/2

Answer 2

x+x+25+x+55+x-10=360
4x=360-25-55+10
4x=290
x=290
      4
Resposta: 290  ou 72,5
                     4