1. [ x ] + [ x + 2 ] = 4 2. [ x - 1 ] + [ x + 3 ] = 5 tolong bantu jawabya pakai caranya

no 1
x + x + 2 = 4
2x + 2 = 4
2x = 2
x = 1

no 2
x + x + 3 - 1 =5
2x + 2 = 5
2x = 5 - 2
2x = 3
x = 3/2
x = 1,5

1. [x] + [x+2] = 4
    x + x + 2 = 4
    2x = 4 - 2
    2x = 2
    x = 2/2
    x = 1

2. [x - 1] + [x + 3] = 5
    x - 1 + x + 3 = 5
    x + x = 5 + 1 - 3
    2x = 3
    x = [tex] \frac{3}{2} [/tex]