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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
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 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
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And another example: 2w-1=11

 Jan 29, 2018

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