Lösung 2.2:1b

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{{NAVCONTENT_START}}
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To get
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<center> [[Image:2_2_1b.gif]] </center>
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<math>x</math>
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{{NAVCONTENT_STOP}}
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by itself on the left-hand side, we subtract
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<math>1</math>
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from both sides
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<math>2x+1-1=13-1</math>
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which gives
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<math>2x=12</math>
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Then divide both sides by 2,
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<math>\frac{2x}{2}=\frac{12}{2}</math>
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to get
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<math>x</math>:
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<math>x=6</math>

Version vom 14:13, 16. Sep. 2008

To get \displaystyle x by itself on the left-hand side, we subtract \displaystyle 1 from both sides


\displaystyle 2x+1-1=13-1


which gives


\displaystyle 2x=12

Then divide both sides by 2,


\displaystyle \frac{2x}{2}=\frac{12}{2}


to get \displaystyle x:


\displaystyle x=6