+0  
 
0
731
2
avatar+14 

Can someone pls explain to me Grade 7 algebra could u simplify these: 2.4u + 1.4 = 23, 2x = 50, e-10=80

 Jan 29, 2018
edited by DannyBatman8  Jan 29, 2018
 #1
avatar+129870 
+1

 2.4u + 1.4 = 23     subtract 1.4 from  both sides

2.4u  =  21.6          divide both sides by 2.4

u  =  21.6 / 2.4  =  9

 

 2x = 50      divide both sides by 2

x  = 25

 

e-10=80    add 10  to  both sides

e  = 90

 

 

cool cool cool

 Jan 29, 2018
 #2
avatar
0

And another example: 2w-1=11

 Jan 29, 2018

3 Online Users

avatar
avatar