2 answers:
Step 1: 3
Step 2: 6
Step 3: 16
Step 4: 8
Step 5: 5
Nice
This is always true, and can be understood why through some algebra.
Let “x” represent your initial number.
STEP 1: Think of any number
x
STEP 2: Double it
2x
STEP 3: Add 10
2x + 10
STEP 4: Halve it
(2x + 10)/2
which equals
x + 5
STEP 5: Take away the number you originally though [sic] of in Step 1
x + 5 - x
which simplifies into
5
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<h2>♪Answer : </h2>
»f(x) = 9(9 + x)(10)
subtitute x = 2 for f(x).
»f(5) = 9(9 + 5)(10)
»f(5) = 9(14)(10)
»f(5) = 1,260✅