Question

3,5x+1=3+3,1x resposta

Answer 1

Basta isolar o x assim:
3,5x - 3,1x = 2
0,4x = 2
x = 2/0,4
x = 5

Resposta: x = 5.

Espero ter ajudado ^-^

Answer 2

3,5X + 1 = 3 + 3,1X

3,5X - 3,1X = 3 - 1

0,4X = 2 

X = 5