i need help understanding linear equations. 7x-15y+9=0 please help.

Plugging in a value of x lets you compute y, or vice versa. It is the equation of a striaght line.

What are you supposed to do with the equation? Turn it into an equation for y?

try isolating for y

(0,2) m= 4/5

iol

7x-15y+9=0

**Subtract 9 from both sides
7x-15y=-9
**Subtract 7x from both sides
-15y=-7x-9
**Divide both sides by -15
y=(7/15)x+(9/15) <--- equation isolate for y

2+11b=8b+15

Linear equations are equations that contain variables raised to the power of 1, usually represented as y = mx + b, where m is the slope of the line and b is the y-intercept. To understand the given equation 7x - 15y + 9 = 0, we need to rearrange it into the standard form, y = mx + b.

1. Start by isolating the term with y on one side of the equation. Subtract 7x and add 9 to both sides:
-15y = -7x - 9

2. Divide both sides of the equation by -15 to isolate y:
y = (-7x - 9)/-15

Now we have the equation in the desired form, y = mx + b. The coefficient of x, -7/15, represents the slope of the line, and the constant term, -9/15, represents the y-intercept.

Therefore, the equation 7x - 15y + 9 = 0 can be rewritten as y = (-7x - 9)/15.