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Answer:
x=2;DE,EF=9,DF=5
Step-by-step explanation:
Since DEF is isoceles, you can set the equations
x+7 and 2x+5 equal to each other
x+7=2x+5, now solve for x
-x=-2,
x=2, now plug in for each side
DE,EF=9
DF=3(2)-1=5
Factorization is the process of breaking an integer down into its components or divisors, and further calculation can be defined as follows:
Given:

To find:
solve the given problem
Solution:

Therefore, the final answer is "
".
Learn more:
brainly.com/question/10755001
-15 would be your answer a negative plus a negative the signs together would turn negative 15 to positive