Respuesta :

D3xt3R
[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]
tomek1172
Answer in an annex
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