<span>8x + 5 = 35 ------------------ Subtract 5 from each side </span><span><span>8x + 5 - </span>5 </span>= <span>35 - 5 </span><span>8x </span>= <span>30 </span>----------------------------- Divide each side by the number 8 8x ÷ 8 = 30 ÷ 8 x = 15/4 or 3.75 or 3 3/4
In 4 hours they will be 400 miles apart 4 times 55 is 220 and 4 time 45 is 180 since there going in opposer directions add the miles together and it equals 400 so it takes 4 hours
