Answer:
Creo que la respuesta sería B: 2 horas y 15 minutos.
Step-by-step explanation:
Answer:
u need to give more points for thouse kind of questions
Step-by-step explanation:
Answer:
I think the solution will be like this
I hope it's right :)
4x+<span><span>7x</span><span>(12)</span></span>+12=<span><span>1008−<span>4x</span></span>+<span>12
</span></span>88x+12=<span><span>−<span>4x</span></span>+<span>1020
</span></span><span><span><span><span>88x</span>+12</span>+<span>4x</span></span>=<span><span><span>−<span>4x</span></span>+1020</span>+<span>4x</span></span></span><span><span><span>92x</span>+12</span>=<span>1020
</span></span><span><span><span><span>92x</span>+12</span>−12</span>=<span>1020−12</span></span><span><span>92x</span>=<span>1008
</span></span><span><span>92x</span>92</span>=<span><span>1008<span>92
</span></span></span>x=<span><span>252/23</span></span>
