Bill sold half of his comic books. He then bought 16 more if now he has 36, how many did he start with?
1 answer:
1/2x + 16 = 36
1/2x = 36 - 16
1/2x = 20
x = 20 * 2
x = 40 <== he started with 40
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Answer:
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Step-by-step explanation:
Step-by-step explanation:
y = 2x
y = x + 1
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y = 2 (y - 1)
y = 2y - 1
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