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2 black 3s and 2 red Jacks, 4 cards out of 52.
Y=-7x-5
9=-7(-2)-5
9=14-5
9=9
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No regrouping: 4.34 + 4.35
Regrouping (carrying): 4.93 + 3.76
Answer:
x=29°
Step-by-step explanation:
as lines are parallel.
external alternate angles are equal.
7x-86=4x+1
7x-4x=1+86
3x=87
x=87/3=29