If 21 is added to (+ 21) a number (x) the result (=) is 40 less than (- 40) twice the number (2x)
x + 21 = 2x - 40 Add 40 to both sides
x + 61 = 2x Subtract x from both sides
61 = x Switch the sides to make it easier to read
x = 61
A coordinate plane is a two dimensional plane formed by the intersection of a vertical line called y axis and a horizontal line called x axis! Hope this helps
The value of the pressure is 1 when the value of volume is 10 liters, the correct option is D.
<h3>What is the pressure?</h3>
Pressure is defined as the physical force exerted on an object.
The force applied is perpendicular to the surface of objects per unit area.
Given
The equation is

Where the v is the volume and p is the pressure.
The value of p when the value of volume v is 10 liters is;

Hence, the value of the pressure is 1.
To know more abour pressure click the link given below.
brainly.com/question/17799294
Answer:
P = 5
Step-by-step explanation:
2/5(10p) - 2/5(15)= 14
20p/5 - 30/5= 14
4p - 6= 14
4p = 20
p=5
3x(4x4 – 5x)
= 12x^5-15x^2