samuelhayes
samuelhayes samuelhayes
  • 04-02-2021
  • Mathematics
contestada

I need help please!!!
Solve the system by substitution.
y=-4x
y=x-5

Respuesta :

jawhuss
jawhuss jawhuss
  • 04-02-2021
You would plug in y into the other equation.
-4x = x-5
Put x variables on one side
-4x - x = -5
-5x = -5
x=1
Then plug in 1 for x in any equation
y = 1 - 5
y = -4
So the answers are x=1 and y=-4
Hope this helped!
Answer Link

Otras preguntas

All of the following expressions have a value between 0 and 1, excepta. \frac{(-3^{7})}{(-3)^9}b. 4^{-10}× 4^{6}c. \frac{(8^3)^3}{8^{-4}} d. ( \frac{2}{5} ^{8})
What value of x makes the equation true ? 4(2x-4)=16
find the circumference of a circle whose radius is 15.4cm
In scientific notation, what is the sum of 2.3 times 10^{-3} and 5.4 times 10^{-4}?a. 2.84 times 10^{-3}b. 5.63 times 10^{-3}c. 7.7 times 10^{-7}d. 12.42 times
jasmines cd collection is 3/8 jazz 1/4 rap and the rest is rock music what is the fraction of rock music
find the circumference of a circle whose radius is 15.4cm
find the circumference of a circle whose radius is 15.4cm
find the circumference of a circle whose radius is 15.4cm
jasmines cd collection is 3/8 jazz 1/4 rap and the rest is rock music what is the fraction of rock music
What value of x makes the equation true ? 4(2x-4)=16