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12, 3x3 = 9, +3 =12-3=9+3=12
Answer:
x = 12
Step-by-step explanation:
-3x+12=48
-12 -12
*subtract 12 from both sides
-3x = 36
-3x/3 = 36/3
*divide 3 from each sides
x = 12
Answer: A
Step-by-step explanation:
Angles opposite shorter sides of a triangle are smaller, and angles opposite longer sides in a triangle are larger.