lezeira
lezeira
09-12-2013
Mathematics
contestada
7 - 3 ( 5t - 10 ) = 67
Respuesta :
D3xt3R
D3xt3R
09-12-2013
[tex]7-3(5t-10)=67[/tex]
[tex]7-(3*5t-3*10)=67[/tex]
[tex]7-15t-(-30)=67[/tex]
[tex]7-15t+30=67[/tex]
[tex]-15t=67-30-7[/tex]
[tex]-15t=30[/tex]
then...
[tex]t=-\frac{30}{15}[/tex]
[tex]\boxed{\boxed{t=-2}}[/tex]
Answer Link
tomek1172
tomek1172
10-12-2013
Answer in an annex
....................................
Answer Link
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