cookiecreamy456 cookiecreamy456
  • 16-05-2021
  • Mathematics
contestada

Solve using elimination.

-9x + 2y = 5
9x − 4y = -19

Respuesta :

niyh1111
niyh1111 niyh1111
  • 16-05-2021

hi hruStep-by-step explanation:

Answer Link
maya136
maya136 maya136
  • 16-05-2021
-9 + 2y = 5
9x - 4y = -19

Add these equations to eliminate x:
-2y = -14

Then solve -2y = -14 for y:
-2y = -14
-2 -2
(Divide both sides by -2)

y=7

Substitute 7 for y in -9x + 2y = 5:
-9x + (2)(7) = 5
-9x + 14 = 5
-14 -14
(Subtract 14 from both sides)
-9x = -9
-9 -9
(Divide both sides by -9)
x = 1

(1,7)
Mark me Brainlest pls
Answer Link

Otras preguntas

Why can mass spectrometry be used to identify compounds?
The 1959 convertible Cadillac is one of a kind, a famous actor drove it. Which error is made in the above sentence? A. comma splice B. fused sentence C. fragme
A population that initially has 20 bugs approximately doubles every 10 years which graph represents this population growth
9 miles 10 miles 19 miles 22 miles ??
¿Qué postres hay en Colombia, Argentina, España o Cuba? ( You can answer in English too)
Which are the situations that faced Itumeleng Khune that were negatively exploited by media?
Can someone help figure out this question? (image provided)
0.007592 kg=_____mg 1kg = 1000g 1g = 1000mg
1. Chet is applying to both NYPD and CIS. The probability he gets into NYPD is 0.5. The probability that he gets into CSI is 0.7. The probability that he gets i
Which of the following countries is considered highly developed? A. China B. Tajikistan C. Kyrgyzstan D. Kazakhstan