Question

O valor da equação 4 + [x – (2 + 1)2 + 1] = 6 – x(1 – 2)2 é:

Answer 1

4+[x-(2+1)²+1]=6-x(1-2)²

4+[x-(3)²+1]=6-x(-1)²

4+[x-9+1]=6-x(1)

4+[x-8]=6-x

4+x-8=6-x

x-4+x=6

2x=6+4

2x=10

x=10÷2

x=5

S={5}