Question

302 + 12 M equals 278

Answer 1

In the given question there is an equation that has to be solved and the value of the unknown variable "M" has to be determined. It is absolutely possible to find the exact value of the variable "M" as there is 1 equation and 1 variable.
302 + 12 M = 278
12 M = 278 - 302
12 M = - 24
M = - (24/12)
   = - 2
So the value of the unknown variable "M" comes out to be -2. I hope the procedure is clear enough for you to understand and also this is the answer you were looking forward to.

Answer 2

If you would like to solve 302 + 12 * M equals 278, you can calculate this using the following steps:

302 + 12 * M equals 278
302 + 12 * M = 278        /-302
12 * M = 278 - 302
12 * M = - 24                  /12
M = - 24 / 12
M = - 2

The correct result would be - 2.