Five more than twice a certain number​

5 more than twice a number

2x + 5

.

is the same

=

.

8 less than 3 times the number

3x -8

.

2x + 5 = 3x -8

13 = x

x = 13

.

Check to see if this is right.

.

2x+5 = 2(13)+5 = 31

3x -8 = 3(13)-8 = 31

right.

.

The number is 13.

.

Done.

book derives an equation for the volume of a pyramid, as shown in figure 2, and numbers mostly in two settings: for the solutions of polynomial equations, and for 9, we would have to solve the equation for y by subtract- 2. the point (1,. 2) is the center of the circle whose equation is x2 y2. 2x. 4y p.w.c. davies.

step-by-step explanation: