Answer: x = - 8
Step-by-step explanation:
= 8
cross multiplying , we have
8 ( 7 + x) = x
Expanding the Left Hand Side of the equation , we have :
56 + 8x = x collecting the like terms , we have
56 = x - 8x
56 = -7x
dividing through by - 7 we have :
- 8 = x
Therefore :
x = -8
Answer:
4,n=4
Step-by-step explanation:
D=(n,-2) and E=(n,2)
the distance from D to E ,
√{(n-n)^2+(-2-2)^2}=√16=4
the co-ordinate of point C=(0,-2)
given,DC=DE
→√{(n-0)^2+(-2+2)^2}=√16
→n^2=16
therefore,n=4
Answer:
33/40
Step-by-step explanation:
Find a common multiple or multiply each denominator so 1/5 *8 is 8/40 and 5/8*5 is 25/40, add them together to get 33/40 and simplify