I think that the answer a would be timesing them and b would be counting all around the numbers
We know that
if <span>|x+ y-7|+ |4x - y+ 12|= 0
then
</span>x+ y-7=0
and
4x - y+ 12=0
using a graph tool
see the attached figure
the solution is the point (-1,8)
the answer is<span>
the ordered pair of real numbers is (-1,8)</span>
The LCM is 2x2x2x7 factorized
The answer is 35 because it would be 5 times x which is 7