The lcm of all pairs of odd numbers is sometimes their product. Some examples:
3 and 9, the lcm is 9 not their product
3 and 11, the lcm is 33 their product
and so forth
The given equations are:
1) 2y = -x + 9
⇒ x = 9-2y
2) 3x - 6y = -15
⇒3x = 6y - 15
x = 2y - 5
Equating the values of x, we get:
9 - 2y = 2y - 5
9 + 5 = 4y
14 = 4y
y = 3.5
Using this value of y in equation 1 we get:
x = 9 - 2(3.5) = 2
So, the solution set is (2, 3.5)
This would be 10-2 which would equal 8
Letter c
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So fill out the coordinate with those given numbers, and count how far apart they are and you will get your answer. Then times it by x.
