Ask Question
MathematicsMathematics
15 October, 12:52

1) 2x+8y=20

y=2

2x+8 (2) = 20

2) x=5

2x+y=10

2 (5) + y=10

3) 5x-2y=3

y=2x

5x-2 (2x) = 3

4) 2y+x=-15

x=3y

2y + (3x) = - 15

5) 4x+7y=19

y=x+9

4x+7 (x+9) = 19

6) y=6x+11

2y-4x+14

2 (6x+11) - 4x+14

7) 2x-8y=6

y=-7-x

2x-8 (-7-x) = 6

8) x=2y-1

3x-2y=-3

3 (2y-1) - 2y=-3

what is the process and what x and y equal

+5
Answers (1)
  1. 15 October, 13:11
    0
    If they give you what one variable is, you can plug it into the equation and use algebra to solve it. So:

    1) 2x=4 - > 4/2 = 2 so x=2

    2) y=0

    3) x=3

    4) 2y + (3*3y) = - 15

    11y=-15

    y = - 15/11

    5) 4x + 7x + 63 = 19

    11x = - 44

    x = - 4
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “1) 2x+8y=20 y=2 2x+8 (2) = 20 2) x=5 2x+y=10 2 (5) + y=10 3) 5x-2y=3 y=2x 5x-2 (2x) = 3 4) 2y+x=-15 x=3y 2y + (3x) = - 15 5) 4x+7y=19 y=x+9 ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
A rectangle has side lengths (2x-5) meters and (2x+6) meters. write and simplify an expression to represent the perimeter of the rectangle
Answers (1)
12) Beginning with the quadratic equation y = ax2 + bx + c, Fred calculated and then plugged that number in for x to get a y.
Answers (1)
Solve for x ... 5x+18=45
Answers (2)
A jar of mayo is shaped like a cylinder. The radius of the jar is 1.5 I Chen's and it's height is 7 inches. The mayo sells for0.08$ per cubic inch what is the cost of the mayo
Answers (1)
How much water is in an empty glass that is 10cm high and has a diameter of 5cm
Answers (1)
New Questions in Mathematics
What is the solution to this equation? 3x - x+8+5x-2=10
Answers (1)
Express each of the following as a fraction in lowest terms 1: 3/6 2: 2/8 3: 12/20
Answers (1)
Randi earned a profit of $60.00 on her last snow shoveling and salting job. Write an equation that can be solved to find how many hours Randi spent shoveling and salting to earn a profit of $60.00. HINT: Randi charges $25 an hour to shovel and salt.
Answers (1)
The lengths of the sides of a triangle are 4, 5, 6. Can the triangle be a right triangle?
Answers (2)
Name a big reason Europeans came to the "New World" during the fifteenth and sixteenth centuries?
Answers (1)
Home » Mathematics » 1) 2x+8y=20 y=2 2x+8 (2) = 20 2) x=5 2x+y=10 2 (5) + y=10 3) 5x-2y=3 y=2x 5x-2 (2x) = 3 4) 2y+x=-15 x=3y 2y + (3x) = - 15 5) 4x+7y=19 y=x+9 4x+7 (x+9) = 19 6) y=6x+11 2y-4x+14 2 (6x+11) - 4x+14 7) 2x-8y=6 y=-7-x 2x-8 (-7-x) = 6 8) x=2y-1 3x-2y=
Sign Up Forgot Password?