ireosho ireosho
  • 19-03-2021
  • Mathematics
contestada

substitution 2x - 3y + = -45, x + 6y = 45

Respuesta :

thebecks
thebecks thebecks
  • 19-03-2021

Answer:

y = 9

x = -9

Step-by-step explanation:

2x - 3y + = -45

x + 6y = 45,   x = 45 - 6y

substitute for x:

2(45 - 6y) - 3y = -45

90 - 12y - 3y = -45

combine like terms:

90 - 15y = -45

15y = 135

divide both sides of the equation by 15:

y = 9

x = 45 - 6(9) = -9

Answer Link

Otras preguntas

These compounds are used to carry out chemical reactions and regulate metabolism in organisms?
Convection plays a role in the water cycle because of which process?
Which of the following is an example of an open-ended question? Who is your favorite player? Do you know Willie Mays’ career batting average? Why do you thin
What is the slope of a roof that rises 12 feet over a run of 28 feet?
what is the scale factor of triangle rst to triangle UVW where rst and uvw both have side Lengths 8,7,7
The volume of a cylinder is V = r2h. Solve for h (height) in this formula.
Complete the sentence. The _____ verb form is used for a continuous action, or state of being, that will have occurred before or during a certain time in the fu
List the equipment required to outfit a smaw station
What is one benefit to measuring your body's flexibility?
If someone values prevention as a way to maintain good health, what would you expect them to do?