Question

2+{8-2x[3-2x[3-(7-6)] quanto e?

Answer 1

2+{8-2x[3-2x[3-(7-6)
2+{8-2x[3-2x[3-(7-6)]]}
2+{8-2x[3-2x[2]]}
2+{8-2x[5-2x]}
2+{13-4x}
15 - 4x
-4x = 15
x = -3,75