Shortyk8451 Shortyk8451
  • 02-03-2021
  • Mathematics
contestada

How do you solve the system of equations 8x-9y=158x−9y=15 and -x+4y=1−x+4y=1 by combining the equations.

Respuesta :

Muscardinus Muscardinus
  • 03-03-2021

Answer:

x = 3 and y = 1

Step-by-step explanation:

Give system of equations are :

8x-9y=15 ...(1)

−x+4y=1 ...(2)

Multiply equation (2) by 8.

−8x+32y=8 ..(3)

Add equation (1) and (3).

8x-9y -8x + 32y = 15+8

23y = 23

y = 1

Put the value of y in equation (2).

−x+4(1)=1

-x = -4+1

x = 3

Hence, the values of x and y are 3 and 1.

Answer Link

Otras preguntas

Triangle XYZ is shown on the coordinate plane below: Triangle XYZ on the coordinate plane with ordered pairs at X 4, 5, at Y 5, 3, at Z 1, 3 If triangle XYZ i
Solve: 3x 31 = x – 25
What type of punctuation should not typically be used in any kind of formal or professional writing?
What is the term for movement in particular direction
Solve the inequalities, if possible, and graph. 4(4t + 2) < 2(4t + 4).
work out the median of these numbers in standard form; 0.005, 0.0064, 0.00007, 0.00042
Factor 30y 2 z 12yz 2 - 18yz.
fossil evidence, rocks, and the shape of continents provide support for the theory of
A diamond with a mass of 45 g hangs motionless from a chain. what is the upward force of the chain on the diamond?
Gina Chuez has considered starting her own custom greeting card business. With an initial start up cost of $1500, she figures it will cost $0.45 to produce eac