Seudónimo Seudónimo
  • 02-03-2021
  • Mathematics
contestada

Find the solution to the following system of equations using substitution or elimination​ y=-2x+7 y=3x-8

Respuesta :

mreyna6
mreyna6 mreyna6
  • 02-03-2021

Answer:

x = 3, y = 1

Step-by-step explanation:

By substitution since y = -2x + 7, substitute that for the 2nd y so

-2x +7 = 3x - 8, so x = 3, then substitute the 3 in any of the equations, so y = -2(3) + 7 is equal to 1

If you use elimination you can subtract the two equations from each other to get rid of the y so

y = -2x + 7

-y = -3x + 8

so 0 = -5x + 15, 5x = 15, x=3

Answer Link

Otras preguntas

Which expression can be used to change 75 kilometers per hour to meters per minute?
india takes the two hour train ride from minneapolis to chicago every dummer to visit her grandparents. The train traveled 44 7/16 (thats a mixed number) mile
How many hours are 180 minutes
A particle travels in a circle of radius 82 cm and with a centripetal acceleration of 4.7 m/s2. How long does the particle take to complete one revolution?
What is the solution: (9x+2)(4x^2+35x-9)=0
Is the E-CIG industry more "safe" than the actual tobacco companies? Why? If someone offered you E-CIGS than cigarettes would you say yes or no? Why?Full Paragr
in a parallelogram one angle is 9 times the size of another. find the measures of the angles
State whether the following statements are true or false. Justify.(i) For an arbitrary binary operation * on a set N,  a * a = a ,  for all a * N.(ii) If * is a
graph y=3sinx and y=sin 3x on the same axes. label the graph of each function.
What number is equivalent to 13/2