Question

solve and verify 3x + 1 = 28

Answer 1

hey...

$3x + 1 = 28 \\ 3x = 28 - 1 \\ 3x = 27 \\ x = \frac{27}{3} \\ x = 9 \\ \\ by \: putting \: the \: value \: of \: x \\ 3x + 1 = 28 \\ 3 \times 9 + 1 = 28 \\ 27 + 1 = 28 \\ 28 = 28$

Answer 2

3x+1=28
3x=27
x=9
3×9+1=28
28=28
hence prooved