2nESO12-13- Bloc 1.pdf - Institut Alexandre Satorras
2nESO12-13- Bloc 1.pdf - Institut Alexandre Satorras
2nESO12-13- Bloc 1.pdf - Institut Alexandre Satorras
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Resol aquestes equacions per aïllament:<br />
7x = 91<br />
5x = 12<br />
4x= 3<br />
-2x=6<br />
x – 6 = 23<br />
17 + x= 4<br />
12= 3 + 5x<br />
4+2x=17<br />
3x + 18 = 57<br />
4x – <strong>13</strong> = 25<br />
17= 4x - 5<br />
5x + 25 = 10<br />
87= 35 – 4x<br />
x<br />
= 17<br />
3<br />
2 x<br />
=<br />
5<br />
8<br />
x + 5<br />
= 12<br />
7<br />
x − 4<br />
= 8<br />
9<br />
5x<br />
+ 3<br />
= 9<br />
4<br />
2x<br />
− 5<br />
= 7<br />
4<br />
3· (x+5) = 12<br />
5 · (x-3)= 27