mckatiepaigeovubjs
mckatiepaigeovubjs mckatiepaigeovubjs
  • 13-10-2017
  • Mathematics
contestada

-4.5x-2y=-12.5 3.25x-y=-0.75
solve by elimination

Respuesta :

anthony12341
anthony12341 anthony12341
  • 13-10-2017
-4.5x-2y=-12.5 and 3.25x-y=-0.75
we first multiply the second equation by -2
(-2)*(3.25x-y=-0.75)=-6.5x+2y=-1.5
add the equation to eliminate the y
so yo get (-4.5x-6.5x)=(-12.5-1.5)
-11x=-11
x=1
now we plug in x into any equation to solve for y
-45x-2y=-12.5 and x=1
(-45*1)-2y=-12.5
-4.5-2y=-12.5
-2y=-12.5+4.5
-2y=-8
y=4
then your answer is x=1 and y=4
Answer Link

Otras preguntas

Solve each equation by completing the square. If necessary, round to the nearest hundredth.Please show steps, steps needs.1. b^2+10b=752. n^2-20n=-753.. t^2+8t-
graph the function y=1/2sin(x-pi/4)
How were mid-ocean ridges discovered?
graph the function y=1/2sin(x-pi/4)
A major characteristic of the Anasazi culture in what is today the U.S. Southwest was (A) the building of large mounds for burial grounds (B) potlatch ceremonie
find exact value using reference anglescot -53pi/6
Which statement is true about the thyroid hormones? (1) They increase the rate of metabolism in cells throughout the body. (2)They control how quickly cells use
What was the purpose of the Titanic's inner hull?
What is 1/4 of $8.000 dollars?
Which two domains consist only of single-celled prokaryotes? a. Bacteria and Archaea b. Bacteria and Eukaryota c. Archaea and Eukaryota d. Prokaryota and Bacter