Solution 2.2:1b

From Förberedande kurs i matematik 1

(Difference between revisions)
Jump to: navigation, search
m (Lösning 2.2:1b moved to Solution 2.2:1b: Robot: moved page)
Line 1: Line 1:
-
{{NAVCONTENT_START}}
+
To get
-
<center> [[Image:2_2_1b.gif]] </center>
+
<math>x</math>
-
{{NAVCONTENT_STOP}}
+
by itself on the left-hand side, we subtract
 +
<math>1</math>
 +
from both sides
 +
 
 +
 
 +
<math>2x+1-1=13-1</math>
 +
 
 +
 
 +
which gives
 +
 
 +
 
 +
<math>2x=12</math>
 +
 
 +
Then divide both sides by 2,
 +
 
 +
 
 +
<math>\frac{2x}{2}=\frac{12}{2}</math>
 +
 
 +
 
 +
to get
 +
<math>x</math>:
 +
 
 +
 
 +
<math>x=6</math>

Revision as of 14:13, 16 September 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

Retrieved from "http://wiki.sommarmatte.se/wikis/2008/bridgecourse1-ImperialCollege/index.php/Solution_2.2:1b"