alyahmonroe39 alyahmonroe39
  • 02-11-2020
  • Mathematics
contestada

HELP PLEASE!! Solve the system of equations 7x – 8y = - 7 and - 4x + 5y=1
equations.
1 by combining the
(7x -8y -7)
4x +5y = 1)
= -7
7x -8y
- 4x +5y
3 + 0 y=
-
1
try
O

Respuesta :

emmymstarr emmymstarr
  • 03-11-2020

Answer:

(-9,-7)

Step-by-step explanation:

35x-40y=-35

-32x+40y=8

3x=-27

x=-9

-63-8y=-7

-8y=56

y=-7

Answer Link

Otras preguntas

what is the dot in i called?
The belief that the U.S. should extend all the way to the Pacific Ocean because it was God's will Spoils system Harriet Tubman Manifest Destiny Dawes Act
This watery vacation spot is considered part of both California and Nevada. Name this lake
Whats is the definition of Parallel Circuit
Calculate the number of oxygen atoms in 2.00 moles of Mn2O7
Which president first held a Fourth of July celebration at the White House? George Washington John Adams Thomas Jefferson James Madison
Which president first held a Fourth of July celebration at the White House? George Washington John Adams Thomas Jefferson James Madison
Which two U.S. presidents were impeached?
The book shows how to add and subtract binary and decimal numbers. However, other numbering systems are also very popular when dealing with computers. The octal
what is database of computer ?