What is the justification for the step taken from line 2 to line 3?

3x+9-7x=X+10+X

4x+9=2x+10

6x+9 = 10

6x=1

Find the roots 2x 2 + 4x - 5 = 0

Leastest to greatest 0.5,3/16,0.75,5/48

If you have 6 black socks, 4 blue socks, 8 brown socks, and 2 red socks in your sock drawer, what is the minimum number of socks that you need to pull out in the dark to be sure you had a matching pair?

In 1904, a dictionary cost 30 cents. Since then the cost of a dictionary has risen an average of 6 cents per year. A. Write a linear equation to find the cost C of a dictionary y years after 1904. B.

What is/are the mode (s) of 0, 2, 1, 2, 3, 0, 2, 0, 2, 0

The rectangle below has an area of 70y^8+30y^670y 8 + 30y 6 70, y, start superscript, 8, end superscript, plus, 30, y, start superscript, 6, end superscript square meters.

What are ratios that are equivalent to 8:20?

Debra drove 380 miles using 14 gallons of gas. At this rate, how many gallons of gas would she need to drive 418 miles?

State whether - -4-) and (-4) represent the same quantity, Explain,

A spherical solid of volume 123,456 is melted and recast into a solid cube. What is the side length of the cube?