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iren2701 [21]
3 years ago
9

21x/2 = 2(x-1)+3 I need this quick if that’s ok

Mathematics
1 answer:
ruslelena [56]3 years ago
6 0
<h3>step-by-step answer:</h3><h3>21x/2=2x+1</h3>

multiply both sides by 2

<h3>21x/2 · 2=2x·2+1·2</h3>

simplify

<h3>21x=4x+2</h3>

subtract 4x from both sides

<h3>21x- 4x=(4x)+2-(4x)</h3>

divide both sides by 17

<h3><u>17x=2</u></h3><h3>17   17</h3>

simplify

<h3>x=2/17</h3>
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H0: p1=p2    against the claim Ha: p1≠p2

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