anac2019 anac2019

16-10-2018
Mathematics

contestada

Solve the system of equations by elimination. 2x-y+3z=-1, x+2y-4z=-1, y-2z=0

Respuesta :

abbylee78 abbylee78

16-10-2018

16, 3x-y=4

3x-3x-y=4-3x

-y=4-3x(multiply both sides by -1 to get...)

y=3x-4

17. -4x-5y=20

-4x+4x-5y=20+4x

5y=4x+20
5y/5=4/5x+20/5
y=4/5x+4

19,
-3x+7(0)=-21
-3x=-21
-3x/-3=-21/-3
x=7

Answer Link

Otras preguntas

Which equation is equivalent to the given equation.

alquien me ayuda . Complete with WAS or WERE 1. John ...... at home last week. 2. They ...... at the cinema yesterday. 3. Your parents ...... at the station a

Solve for a. 2/3a^2=30 Enter your answers, in radical form, in the boxes. I’ll give you Brainliest if you answer quickly

can someone give me an idea for this assignment?

The speaker’s volume and vocal pitch are examples of… Proxemics Paralanguage Kinesics

NEED HELP WITH FINAL MYTHOLOGY PARAGRAPH

Find the range of the function for the domain(-4,-2,0, 1.5,4).f(x) = 5x²+ 4

why was England more capable of sparking the Industrial Revolution than any other nation? I pick brainlest

What were the components of society that lead to geographical expansion

what is a good topic sentence for a mythology paper?