Answer:
f = 9
Step-by-step explanation:
8f - 25 = 47
Add 25 to both sides.
8f - 25 + 25 = 47 + 25
On the left side, -25 + 25 = 0, so the -25 is eliminated.
On the right side, we add 47 + 25 = 72
8f = 72
Now we divide both sides by 8.
8f divided by 8 is just f. 72 divided by 8 is 9.
8f - 25 = 47. Add 25 to both sides.
8f = 72. Divide each side by 8.
f = 9.
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B angle 3 and 6 are complementary angles
1. SSS; Triangle ABC is congruent to Triangle DEF; sorry there's no triangle symbol on here.
2. HL; CBA is congruent to ZYX; or ABC is congruent to XYZ
