Question

the value of x in 3x-4+7 is?

Answer 1

Answer:

$= > 3x - 4 + 7 \\ = > 3 \times ( - 1) - 4 + 7 \\ = > - 3 - 4 + 7 \\ = > - 7 + 7 \\ = > 0 \\ \\ so \: \: \: \: \: \: (x = - 1)$

Answer 2

3x-4+7=0
3x-4=-7
3x=-7+4
3x=-3
x=-3/3
x=-1