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3 years ago

7

If 4y = 20 then 2y - 1 equals what number

2 answers:

inessss [21]3 years ago

3 0

$4y=20\\20\div4=5\\y=5\\\\2y-1;y=5\\2\times5-1\\10-1\\\boxed9\\\\\star\bowtie\star$

const2013 [10]3 years ago

3 0

4y = 20
y = 20 / 4
y = 5

2y - 1 = ?
2(5) - 1 = ?
10 - 1 = 9

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