Xanderr Xanderr

02-10-2020
Mathematics

contestada

Plz help me.
Solve the system of linear equations by substitution
X+y=-7
-5x+y=5

Respuesta :

jennyzhang096 jennyzhang096

05-10-2020

Answer:

x= -2 y= -5

Step-by-step explanation:

X+y=-7

x+-y-7

-5(-y-7)+y=5

5y+35+y=5

6y+35=5

6y=5-s5

6y=-30

y=-5

-5x+(-5)=5

-5x=5+5

-5x=10

x=-2

Answer Link

Otras preguntas

Can someone please answer my questions please it is due today!!!

Multiply. (2x+1)(x−5) Express the answer in standard form.

does anyone know what the correct answer is to this question?

State 3 reason why qualified educators struggle to get employed in the education sector

When 2.50 g of an unknown weak acid (ha) with a molar mass of 85.0 g/mol is dissolved in 250.0 g of water, the freezing point of the resulting solution is -0.25

2x-1=10 can someone help please?

What three farming methods increase the rate of soil erosion?

How many moles are in 1.35 x10^23 representative particles of Fluorine?

A ....................... contain paired stetements that can be used to identify organisms

Which sentence uses the correct MLA in-text citation? A. In his book Reach the Stars, Dr. Leo Beck says that athletes often succumb to the pressure to succee