Question

equação do 1 grau

3 + x + 8 =16 - x

Answer 1

3 + x + 8 =16 - x
11 + x = 16 - x
x + x = 16 - 11
2x = 5 ----> x = 5/2

Answer 2

3+x+8=16-x
x+x=16-8-3
2x=5
x=5/2
x=2,5