Tali1982 Tali1982
  • 01-04-2021
  • Mathematics
contestada

solve the system of equations -8x+7y=6 and 3x-2y=4 by combining the equations

Respuesta :

Yang100
Yang100 Yang100
  • 03-04-2021

Answer:

x=8, y=10. (8, 10).

Step-by-step explanation:

-8x+7y=6

3x-2y=4

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

2(-8x+7y)=2(6)

7(3x-2y)=7(4)

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

-16x+14y=12

21x-14y=28

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

5x=40

x=40/5

x=8

3(8)-2y=4

24-2y=4

2y=24-4

2y=20

y=20/2

y=10

Answer Link

Otras preguntas

Why does cold water sink, while warm water layers on top?
-2/21-21/35= What is the answer to this problem someone help me.
Evaluate |bc|, given a = 5, b = -3, and c = -2. A(5 B(-5 C(6 D(-6
there are 50 paper clips and each box Sarah bought 6 boss boxes how many total paper clips did she have
How many ways can a committee of 2 be selected from a club with 12 members?
Leah cut a 7inch piece of ribbon into pieces that are each 1/2 long. How many ribbons did she cut
Is viscosity a physical or chemical change?
a=b+cp - what is p?
Can someone please please help me with this I’m sooo confused
3 ways Shelley creates a gothic atmosphere in Frankenstein?