lltimmerman
lltimmerman
10-10-2015
Mathematics
contestada
7(3x-4)=49 how do you solve
Respuesta :
leumitica
leumitica
10-10-2015
[tex]7(3x-4)=49 [/tex]
Distributhing 7 through prantheses
[tex]7*3x-7*4=49 [/tex]
[tex]21x-7*4=49 [/tex]
[tex]21x-28=49 [/tex]
Add28
[tex]21x=49+28 [/tex]
[tex]21x=77 [/tex]
Divide by 21
[tex]x= \frac{77}{21} [/tex]
[tex]x= \frac{11* \not7}{3* \not7} [/tex]
[tex]x= \frac{11}{3} [/tex]
[tex]x=3 \frac{2}{3} [/tex]
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