amandaoneal18 amandaoneal18
  • 22-11-2019
  • Mathematics
contestada

Solve the linear equation by using substitution X-y=-4 3x-y=-10

Respuesta :

Yang100
Yang100 Yang100
  • 30-11-2019

Answer:

(-3, 1)

Step-by-step explanation:

x-y=-4

3x-y=-10

------------

y=x-(-4)=x+4

3x-(x+4)=-10

3x-x-4=-10

2x-4=-10

2x=-10+4

2x=-6

x=-6/2

x=-3

-3-y=-4

y=-3-(-4)=-3+4=1

x=-3, y=1. (-3, 1).

Answer Link

Otras preguntas

I need you help, help me pleaseeeee
can someone help please Stickers are sold in packages of 15 sheets. If there are 20 students in the class, how many packages of stickers should the teacher buy
-2z(3c+9z)-7c(-5c+z) solve using distributive property. does anyone know the answer?
The Federalists, especially James Madison, believed that factions were dangerous to a republic, because
3. Chris wants to see if his basil plants grow better in full sunlight or partial sunlight. He plants 5 basil plants on the east side of his house that only rec
simplify 3[tex]\frac{2}{5}[/tex]x3([tex]\frac{7}{5}[/tex])
What are plate boundaries?
one half of a number plus 7
Round 249798.828806 to the nearest ten.
Latasha played a game where she could either lose or gain points each round. at the end of 8 rounds , she has 19 points . After one more round,she had 7 points