pickerk21
pickerk21
13-12-2017
Mathematics
contestada
Substitution..... please help ((:
y=2x
x+3y=21
Respuesta :
AnimeBrainly
AnimeBrainly
13-12-2017
y = 2x
x + 3y = 21
x + 3(2x) = 21
x + 6x = 21
7x = 21
7x/7 = 21/7
x = 3
2(3) = y
y = 6
hope this helps
Answer Link
VER TODAS LAS RESPUESTAS ( 51+ )
Otras preguntas
How many solutions does the equation have? 4x 1=5 2(2x-4)
Which pair below describes isotopes of the same element? A) an atom with 6 protons and 8 neutrons - an atom with 8 protons and 6 neutrons B) an atom with 6 pr
Which word in the sentence is the direct object? I saw the new action movie last night at the theater. a. movie b. saw c. I d. action
a curtain machine must be between 2.73 and 3.55 inches which is greater than 2.73 and 3.55
Which of the following proportions are true 1:4= 2:5 6:9= 10:12 5:11= 15:30 2:7= 4:14
Which of the following proportions are true 1:4= 2:5 6:9= 10:12 5:11= 15:30 2:7= 4:14
How to convert 4.125 in simplest form
The blank expressed the darkest and most ominous aspect of the rural counterattack of the early 1900s. A) Red Scare B) Palmer raids C) Ku Klux Klan D) Prohibit
Linda's container of cranberry juice holds 200 milliliters. Harry's container holds 7/8 as much juice. How many milliliters of cranberry juice does Harry's con
how can you use ratification in a sentence
