torreseli146
torreseli146 torreseli146
  • 01-04-2021
  • Mathematics
contestada

What is the x-value of the solution to this system of equations?
Y=2/7x-1
2x + 7y = -49

Respuesta :

karkismriti176
karkismriti176 karkismriti176
  • 04-04-2021

Answer:

x = -21/2

Step-by-step explanation:

y= 2/7 x-1

or, 7y= 2x -7

or, 2x -7y =7

2x + 7y = -49

4x = -42

x= -21/2

y= 2/7 × -21/2 -1

= -4

Answer Link

Otras preguntas

what is the value for the expression -5+ 5
A six−sided die, with sides numbered 1,2, 3,4,5, and 6, is tossed. What is the probability of tossing a number less than three?
Write an addition equation with a positive addend and a negative addend and a resulting sum of -8
Anyone know how to do this kind of algebra?  Compute the discriminants of the next two quadratic equations. Compare the result in (A) to that in (B). What do y
1/3(9x+27)-4=1/2(2x+54)
three consecutive even integers have a sum of 168. what's the value of the largest integer?
How do I solve c/4d divided by 3/8d
What is the coefficient of x in the expression x-2? Explain your reasoning.
how do you solve m/9 divided by mn squared / 3
Suppose that 2 scientists use different measurement systems in their work. What problems might arise if they shared their data?