Question

3x+6x-4=24
9x-4=24/+4
9x=28/:9
x=?

Answer 1

3x + 6 - 4 = 24

3x + 2 = 24

[ 3x + 2 ] + [ -2 ] = 24 + [ -2]

x = 22÷3

9x - 4 = 24/4

9x - 4 = 6

[9x-4] + 4 = 6+4

x=10÷9

9x-28/9

9x.9/9 - 28/9

81x-28/9

x=31