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avatar+26 

queston 1:   28=-9x-8+5x

 

 

 

 

queston 2:  -18=7u+9-10u

 Feb 5, 2019

Best Answer 

 #1
avatar+4443 
+3

\(28 = -9x - 8 + 5x \\ 28 = -4x-8\\ 36=-4x\\ -9 = x\)

 

 

\(-18=7u+9-10u\\ -18 = -3u+9\\ -27=-3u\\ 9=u\)

.
 Feb 5, 2019
 #1
avatar+4443 
+3
Best Answer

\(28 = -9x - 8 + 5x \\ 28 = -4x-8\\ 36=-4x\\ -9 = x\)

 

 

\(-18=7u+9-10u\\ -18 = -3u+9\\ -27=-3u\\ 9=u\)

Rom Feb 5, 2019
 #2
avatar+26 
+1

thank you so so so much

 

thank you

abbers  Feb 5, 2019

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