ihr2xmm2y7 ihr2xmm2y7
  • 06-11-2020
  • Mathematics
contestada

Solve the following system of equations using SUBSTITUTION.
y = 3x
3x + 2y = 12
PLEASE EXPLAIN!! :)

Respuesta :

abimbolaroheemot abimbolaroheemot
  • 06-11-2020

Step-by-step explanation:

y = 3x_______equation1

3x + 2y = 12_____equation2

sub y into equation 2

3x+2(3x)=12

3x+6x=12

9x=12

x=3/4

sub X into equation 1

y=3x

y=3(3/4)

y=9/4

y=9/4 x=3/4

I hope this helps

Answer Link

Otras preguntas

F= (5x-2)(5x-8)-(3x - 5)(x + 7)
but-2-ene-1 4-diol structure​
What type of bond is formed between H and B? 1. ionic 2. non-polar covalent 3. polar covalent
JUST ANSWER B AND CI GIVE BRAINLY IF YOU SHOW THE WORK ON PAPER°°°​
In each of the following sentences, fill in the blanks with the word Debt or Credit. 1. Revenue accounts normally have       ?       balances. These accounts in
ERROR ANALYSIS Describe and correct the error in finding DE. Point D is the centroid of ABC. X DE=2/3AE DE = 2/3(18) DE = 12 AE = 18
descrie următoarele miscari: a) miscarea unui autobuz, in care traiectoria este rectilinie b) miscarea unei mingi aruncate pe verticala de sus in jos c) miscare
The science club of your school is going to organize a science exhibition in your school. Write a notice inviting the students who want to participate in it.
write -(3i)^3 in the form a+bi, where a and b are real numbers
marks Stephanie Hill Each interior angle of a regular polygon is 169 1/11 how many sides does the polygon have