let's solve your equation step-by-step.
4x+2=2x+12
step 1: subtract 2x from both sides.
4x+2−2x=2x+12−2x
2x+2=12
step 2: subtract 2 from both sides.
2x+2−2=12−2
2x=10
step 3: divide both sides by 2.
2x
2
=
10
x=5
step-by-step explanation:
geometry: triangles
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answers archive
call the larger triangle abc
then the smaller triangle cde is similar to abc (all angles are equal, aaa).
ab is the side that is 36, and we wish to find de, the side corresponding to ab
area_cde = area_abc - area_cde --> area_abc / area_cde = 2
let x=length of de
ratio of areas = (ratio of sides)^2
+2+=+%2836%2fx%29%5e2+
+2+=+1296%2fx%5e2+
++x%5e2+=+1296%2f2+=+648+
25.45584