lukerothbacher lukerothbacher
  • 02-02-2019
  • Mathematics
contestada

3x + 4y = 5
X- 3y = -7


Solve by substitution

Respuesta :

meredith48034
meredith48034 meredith48034
  • 02-02-2019
x = 3y - 7
3x + 4y = 5

3(3y - 7) + 4y = 5
9y - 21 + 4y = 5

13y - 21 = 5

13y = 26

y = 2

x - 3(2)= -7

x - 6 = -7

x = -1

(-1, 2)
Answer Link

Otras preguntas

The outcome of the Chinese Civil War led to the implementation of which failed policy? Answers to The Cold War Era Practice 1) the Great Leap Forward. 2) There
Cinder cone volcanoes have alternating layers of ejected material. Please select the best answer from the choices provided T F
Consider the following equation. 6 ^ ( -x ) + 4 = 3x -1
Which statement most accurately describes the issues in this paragraph
7.....................
15% of 20 isΟ 30Ο 300​
CAN SOMEONE PLZ HELP ME NOW I I WILL MARK AS BRAINLIEST 40points!!!
Can someone help me with this?
what term is used to describe the height of a wave Amplitude Frequency Period Wavelength
Which statement best explains how Brutus tragic flaw reveals the theme that citizens are persuaded by charismatic leaders?