Answer:
x = 9
Step-by-step explanation:
First, we want to isolate variable x on the left side of the equation. We can do this by adding 13 to both sides.
x - 13 + 13 = - 4 + 13
x = 9
Answer:
9
Step-by-step explanation:
Work:
-2(3x+2)≥-6x-4
-6x-4≥-6x-4
-4≥-4
0≥0
Answer:
All real numbers are solutions.
Explanation:
The first step was to multiply 3x+2 by (-2). That gives you -6x-4, which is the same as the other side. You would then add 6x to both sides, giving you -4≥-4. The last step would be to add four to both sides. When you get 0≥0, you know that all real numbers are solutions.
Answer:
20
Step-by-step explanation:
6/x + 2x²
6/3 + 2(3)²
2 + 2(9)
2 + 18
20
Answer:
55 gallons, the initial quantity of water in the tank
Step-by-step explanation:
Y is defined as the amount of water in the tank. When X (the number of minutes spent draining) is zero, no water has left the tank. So, the Y-intercept is the initial amount of water in the tank, 55 gallons.
