From Förberedande kurs i matematik 1

Revision as of 14:13, 16 September 2008 (edit) Ian (Talk | contribs) ← Previous diff		Current revision (13:12, 23 September 2008) (edit) (undo) Tek (Talk | contribs) m
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-	To get	+	To get ''x'' by itself on the left-hand side, we subtract 1 from both sides
-	<math>x</math>	+
-	by itself on the left-hand side, we subtract	+
-	<math>1</math>	+
-	from both sides	+
-		+
-		+
-	<math>2x+1-1=13-1</math>	+
		+	{{Displayed math||<math>2x+1-1=13-1</math>}}
	which gives		which gives
-		+	{{Displayed math||<math>2x=12\,\textrm{.}</math>}}
-	<math>2x=12</math>	+
	Then divide both sides by 2,		Then divide both sides by 2,
		+	{{Displayed math||<math>\frac{2x}{2}=\frac{12}{2}</math>}}
-	<math>\frac{2x}{2}=\frac{12}{2}</math>	+	to get ''x'',
-		+
-		+
-	to get	+
-	<math>x</math>:	+
-		+
-	<math>x=6</math>	+	{{Displayed math||<math>x=6\,\textrm{.}</math>}}

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Current revision

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

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

which gives

\displaystyle 2x=12\,\textrm{.}

Then divide both sides by 2,

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

to get x,

\displaystyle x=6\,\textrm{.}