<span>"Five times a number added to -4"
5x + (-4)
</span>
<span>subtracted from...
"twice the sum of eight times the number and 7"
2(8x + 7)
5x - 4 - 2(8x + 7)
distribute the -2
5x - 4 - 16x - 14
combine like terms
</span><span>
-11x - 18
</span>
I believe that the answer is 14
Answer:
(-3.5,-2)
Step-by-step explanation:
Answer:
<h2> 2minutes</h2>
Step-by-step explanation:
Since the expression for the amount of gas in the tank is given as
g = 5t + 4
we already know that g=14 which is the capacity of the tank
so let us put g=14 we have
14=5t+4
solving for t, which is the time taken to fill up the tank that already has 4 gal already we have
14=5t+4
14-4=5t
10=5t
t=10/5
t=2min
Therefore the time taken to fill the tank is 2minutes