Sorality
Sorality Sorality
  • 01-07-2017
  • Mathematics
contestada

Find the solution of this system of equations

-5x + y= -7
-6x - y = 7

Show work please!

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 26-08-2018

The two equations can be added to eliminate y.

... (-5x +y) + (-6x -y) = (-7) + (7)

... -11x = 0

This tells you x=0. Substituting this value into either of the other equations tells you y = 7. For example, using the first equation, you get

... 0 + y = 7

The solution is (x, y) = (0, 7).

Answer Link

Otras preguntas

what are limits in algebra
the modern era came about, in part of what historical event ? a. the american civil war b. the french revolution c. the fall of the Qing dynasty d. the indust
Coach Jenson bought 15 shirts for $180 for the basketball team. What was the unit cost, in dollars, per shirt?
Who was the french king who built a palace at versailles?
a green plant absorbs light a frog eats flies these are both examples of how organisms
Critical periods after birth exist for _____. a.learning languages b.correcting present birth defects c.going through withdrawals d.sparrows to find their m
how do you write a mixed number as a percent? use 2 1/2 as example.
Santo has 14 yellow markers. He has twice as many blue markers as yellow markers. He has twice as many red markers as blue markers. How many markets does he hav
______ is anything that has mass and takes up space
together, the esophagus, stomach, and intestines are part of a (n)__________