Help please i dont get it

x = 3

Step-by-step explanation:

1. Because the two triangles are similar, it means that the only difference between them is their side lengths.

2. To find x in similar triangles, you first have to find how many times larger one side length in a triangle is than the other. To do this, you have to divide one of the larger triangle's sides with the corresponding side of the smaller triangle.

3. 8 and 6 are corresponding, and so are 6 and 4.5. 8/6 is equal to 1 1/3, and 6/4.5 is also equal to 1 1/3.

4. Since the side lengths of the larger triangle is 1 1/3 greater than the other, (4/3)x = 4.

5. Now, let's solve the equation (4/3)x = 4

6. Therefore, x is equal to 3.

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^