Letter c
-4-9=-13
What is saying u start at -4 See the arrow point go left on number line 9 spaces so your subtracting to give you-13
X = -6
-x + 7 = 13, subtract 7 from both sides.
then you have -x = 6, and you have to device by negative 1 on both sides because you can’t have a negative x value. then you have x = -6.
hope this helps!
0.05x+0.10y = 4.00, if its just the equation
Answer:
First multiply both sides by 3
Step-by-step explanation:
First multiply both sides by 3. So that 3 will be cancelled and you can fond the value of x

Answer:

Step-by-step explanation:
Let the length of the school be x meters (this is also the length of playground) and the width of playground be y meters.
A school wishes to form a rectangular playground using 160 meters of fencing (two widths and one length must be fenced). So,

A function that gives the area of the playground in terms of x is
