Question

solve the following
3x-7=8

Answer 1

When -7 gets transposed to RHS, it becomes +7

So,
3x=8+7

Which will be x=15/3

x=5

Answer 2

In context to questions asked,

We have to determine the value x

As per questions,

We have,

$3x - 7 = 8$

So, for solving the expression we will shift the like terms on one side.

Thus we will get,

$3x - 7 = 8 \\ = > 3x = 7 + 8 \\ = > 3x = 15 \\ = > x = \frac{15}{3} = 5$

Hence, value of X will be 5