Answer:
Step-by-step explanation:

Answer:
it is a simultaneous equation.
the -9d can be cancelled to find the answer
The possibilities are endless
If we're talking between 1-20
then the numbers divisible by 2 and 6 are
18,12,6
Answer:
68
Step-by-step explanation:
1) Find the interior angle using relations of angles in straight line I.e ( sum of angles in a straight line is 180 ) and we know the sum of all the interior angle of quadrilateral is 360 degree .
2) Solve further for x.