hosj hosj
  • 10-04-2020
  • Mathematics
contestada

Solve by Substitution

2x + y = 3
4x + 4y = 8

Respuesta :

rafailpopa rafailpopa
  • 14-04-2020

Answer:

2x + y = 3 => y = 3-2x

then

4x+4(3-2x) = 8

4x+12-8x= 8

-4x = -4

x=1

y=3-2*1 = 1  

Step-by-step explanation:

Answer Link

Otras preguntas

PLEASE HELP!! I thought my math was correct but it wasn’t and I need help
Mr.ward and mr. heskey are racing toy cars and Mr. heskey wants to give mr. ward an 8 ft head start because his car is 2 seconds slower. mr. ward's car travels
how do we solve input and output of a graph ​
The hypotenuse of a right triangle is 15cm long. One of the triangle’s legs is two times the length of the other leg. Find the lengths of the three sides of the
Two number are in the ratio 5:6 and their sum is 44 .Use z as variable
pleaseee need answer asap
Ayuda porfa plis. Ahi estan las posibles respuestas
Identify the dependent clause and circle the independent clause. 1. Since Carmen was so hungry, she stopped at the deli and bought a sandwich. 2. The train was
Simplify 7 – (–12) – 5
find the greatest common factor of 12a^3b, 16a^2b^2, and 36ab^3