Answer:
The Substitution Property of Equality allows you to say that if 7j + 14k = 28, and j = 2, then k = 1 .
Step-by-step explanation:
As the expression is given in the question be as follow .
7j + 14k = 28
As given the value of j = 2 .
Put the value of j in the equation 7j + 14k = 28 .
7 × 2 + 14k = 28
14 + 14k = 28
14k = 28 - 14
14k = 14
k = 1
Therefore the Substitution Property of Equality allows you to say that if 7j + 14k = 28, and j = 2, then k = 1 .
Answer:
u = 7
Step-by-step explanation:
Using the slope intercept formula:
Substitute our values from the points and the known slope:
Now we multiply both sides by (8 - u) to isolate the x:
(8-u) x = -7 (8 - u)
Next we add 56 to both sides:
-7 = -56 + 7u
Finish off by dividing both sides by 7:
7u = 49
u = 7