Answer:
7
Step-by-step explanation:
x * x = 7x
7 x 7 = 7 x 7
49 = 49
so if x is 7, the equation is true...
Answer:
d > -2
Step-by-step explanation:
-2d-2 < 3d+8
3d+8 > -2d-2
3d + 2d > -2 -8
5d > -10
d > -2
<em>Feel free to mark this as brainliest! :D</em>
Answer:
That would be the side-side-side (SSS) postulate, which states that if all the sides of a triangle are in a fixed ratio to all the corresponding sides of another triangle, then the two triangles are said to be congruent.
Step-by-step explanation:
Looking at triangles ABC and DEF, we notice that:

since

Let me know if you have further questions.