angeldevil1999 angeldevil1999
  • 20-12-2014
  • Mathematics
contestada

3b I don't get I know the answer is x=-2 and y=-3 I just can't get it

3b I dont get I know the answer is x2 and y3 I just cant get it class=

Respuesta :

konrad509
konrad509 konrad509
  • 20-12-2014
[tex]x+5y=-17\\ 3x-4y=6\\\\ x=-17-5y\\ 3x-4y=6\\\\ 3(-17-5y)-4y=6\\ -51-15y-4y=6\\ -19y=57\\ y=-3\\\\ x+5\cdot(-3)=-17\\ x-15=-17\\ x=-2 [/tex]
Answer Link

Otras preguntas

Let f(x) = -4x + 7 and g(x) = 10x - 6. Find f(g(x))
Yesterday, a movie theater sold 301 bags of popcorn. A large bag of popcorn costs $3. A small bag of popcorn costs $1. In all, the movie theater made $507 from
why did so many banks fail at the onset of the Great Depression
how to solve x/5+9=4
How do you solve this quadratic equation. -3x^2+147=0
Ohm's law is represented by the equation I = V/R. Explain how the current would change if the amount of resistance decreased and the voltage stayed the same.
State the mathematical relationship between average velocity, displacement, and time interval.
√81x^4 I need to know how to solve it to
4x^2-5x-15=0 how to find the vertex and y intercept
The three branches of the national government were the