1)
, 2) 
3)
, 4) 
5)
, 6) 
7)
, 8) 
9)
, 10) 
11)
12) 
Step-by-step explanation:
We need to solve each equation.
1) 
Solving:
Adding like terms:

Divide both sides by 11

2) 
Solving:
Adding like terms:

Divide by -8

3) 
Solving:
Adding like terms:

Subtract 9 on both sides:


Divide both sides by 4

4) 
Solving:

Divide both side by -7

5) 
Solving:
12r-1=11
Adding 1 on both sides

Divide both sides by 12

6) 
Solving:

7) 
Solving

8) 
Solving:

9) 
Solving:

10) 
Solving:

11) 
Solving:

12) 
Solving:

Keywords: Solving Polynomials
Learn more about solving Polynomials at:
#learnwithBrainly
substitute 7 for y then solve for x
x = 2/3
Answer:
Step-by-step explanation:
5. You are asked to write an equation of the line in slope-intercept form, so you need to determine the slope of the line and the y-intercept.
You're lucky. One of the points, (0,1), has an x-coordinate of 0, so you know that the y-intercept is 1.
Use the coordinates of the points to determine the slope of the line.
slope = (difference in y-coordinates)/(difference in x-coordinates) = (10-1)/(3-0) = 9/3 = 3
The slope-intercept equation of the line is y = 3x+1
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7. When x = 0, function A = 0 and function B = 3, so function B has a greater initial value.