x=-7
step-by-step explanation:
x+3=-10
-10+3=-7
46
given
height = 168 cm
formula
height =2.47*f+54.13
solution
168 = 2.47f + 54.13 subtract 54.13 from both sides
168 - 54.13 = 2.47f combine
113.87 = 2.47f divide by 2.47
113.87 / 2.47 = f combine
46.1 = f
answer: 46 cm
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