1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ratelena [41]
4 years ago
15

-2x + 2y + 3z = 0 -2x - y + z = -3 2x + 3y + 3z = 5

Mathematics
1 answer:
lyudmila [28]4 years ago
8 0

Steps:

isolate " x "  for -2x + 2y  + 3z  = 0 ;    x = -  ( - 3z - 2y ) / 2

Subsititute : x = -  ( - 3z - 2y ) / 2

- 2 * (  - ( - 3z - 2y ) / 2 ) - y + z = - 3

2 * ( -  ( - 3z - 2y ) / 2 ) + 3y  + 3z  =5

isolate " z " for  :  - 2  ( -  ( - 3z - 2y ) / 2 ) - y+ z = - 3 ;  z = - ( - 3 +  3y / 2 )

subsititute  z = - ( - 3 + 3y / 2 ) :

2* ( - ( -3* ( - ( - 3 +3y / 2 ) - 2y / 2  ) + 3y  + 3  ( - ( - 3 + 3y / 2 ) = 5

isolate y for 2 ( -( - 3 ) - 3 + 3y / 2 ) - 2y / 2 ) + 3y + 3 ( - ( - 3 + 3y / 2 ) = 5

y = 1

for z =  - ( - 3+ 3y ) / 2

subsititute y = 1

z = - ( - 3 + 3  * 1 ) / 2

z =  0

For x  = - ( - 3z - 2y ) / 2

subsititute y = 1

subsititute z = 0

x = -  ( - 3 *0 - 2 * 1 ) / 2

x =  1

x = 1  , y =  1  , z = 0



You might be interested in
NEED HELP ASAP! GIVING BRAINLIEST TO WHOEVER ACTUALLY ANSWERS WITH HOW TO DO THE PROBLEM AS WELL. THANK YOU <3
liq [111]

Answer:

2.53800027 ^9

Step-by-step explanation:

the product of both numbers is this.

just add both of them together. If im wrong, i will tell you another answer.

6 0
3 years ago
A new bank customer with $3,500 wants to open a money market account. The bank is offering a simple interest of 1.6%.
Bond [772]

Answer:

A is $490 and B is 3990

Step-by-step explanation:

The way I solved this is with my last brain cells, you welcome.

4 0
3 years ago
Determine the equation of the circle graphed below.<br> Does anyone know the answer??
sp2606 [1]

Answer:

(x - 2)² + (y - 3)² = 2²

Step-by-step explanation:

Standard form

(x - h)² + (y - k)² = r²

(h, k) is the center = (2, 3)

r is the radius = 2

(x - 2)² + (y - 3)² = 2²

7 0
3 years ago
If a − b ∈ P, then (a + c) − (b + c) = a − b is in P. Thus a + c &gt; b + c​
DochEvi [55]

Answer:

yhfuj

Step-by-step explanation:

gchhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

4 0
3 years ago
You can buy 3 t-shirts for 24. Write a proportion that gives the cost c of buying 7 t-shirts.
jarptica [38.1K]
3/24 = 7/x

Solving:
Use cross multiplication

3x = 168

Isolate x by dividing 3 from both sides:

x= $56
8 0
3 years ago
Read 2 more answers
Other questions:
  • GUYS, PLEASE HELP ME PLEASE. THANKS.
    9·1 answer
  • Please help with math!
    13·1 answer
  • PLEASE HELP ASAP I DONT UNDERSTSND SND K NEED IT NOW TY
    5·1 answer
  • What is the slope of the line?
    10·1 answer
  • What word phrase can you used to represent 5X +2
    9·1 answer
  • 16789047+65390-49532578=?
    11·2 answers
  • How many solutions does the equation below have? 3x-8=-2x+9/3
    10·1 answer
  • URGENT‼️NEED HELP ASAP
    15·2 answers
  • Slove 8 - 2.666 to the nearest hundreds​
    10·2 answers
  • Algebra Expression •x minus x​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!