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
prisoha [69]
3 years ago
5

-4 + x = -20 just need help w this problem step by step

Mathematics
1 answer:
jarptica [38.1K]3 years ago
3 0

Answer:

-16

Step-by-step explanation:

as you know you cant add positives so the answer would be a negative

ok so what plus 4 equals 20? 16.

therefore: -16

You might be interested in
Use matrix inversion to solve the collection of systems of linear equations. HINT [See Example 4.] (a) −x − 4y + 2z = −10 x + 2y
omeli [17]

Answer:

Step-by-step explanation:

given is a system of linear equations in 3 variables as

-x - 4y + 2z = −10\\ x + 2y - z = 11 \\x + y - z = 14

This can be represented in matrix form as

AX=B Or

\left[\begin{array}{ccc}-1&-4&2\\1&2&-1\\1&1&-1\end{array}\right] *\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}-10\\11\\14\end{array}\right]

So solution set

X would be A^{-1} B

|A|=-1(-1)+4(0)+2(-1)=--1

Cofactors of A are

-1    0    -1

-2   -1     -3

0     1      2

So inverse of A is

1    2   0

0   1     -1  

1     3      -2

Solution set would be

x=12

y=-3

z=-5

8 0
3 years ago
HELP ME PLEASE!!!!!!! :(
alex41 [277]

Answer:

Divide C values/T values that will tell if it is constant or not and that is the reason.

8 0
3 years ago
Gabe invested $350 in baseball cards. If he lost d dollars when he sold the cards, which expression represents the amount of mon
valkas [14]
350 - d = some number 
8 0
3 years ago
Read 2 more answers
Sara had 324 dollars to spend on 9 books. After buying them she had 18 dollars. How much did each book cost?
larisa86 [58]
Each book costs $34 for this problem you need to first subtract 18 from 324 which gets you 306 then divide 306 by 9 and you get 34
7 0
4 years ago
Read 2 more answers
Which of the following statements demonstrates the associative property of multiplication?
Nata [24]
<span>associative property of multiplication

answer
</span><span>4 ∙ (3 ∙ 6) = (4 ∙ 3) ∙ 6 </span>
6 0
4 years ago
Read 2 more answers
Other questions:
  • CALCULUS TROUBLE :&lt;
    8·1 answer
  • What is the reciprocal of 535 ? PLEASE ANSWER QUICK QUICKLY
    6·2 answers
  • A. 5<br><br><br><br>b. 19<br><br><br><br>c. -11<br><br><br><br>d. 25
    8·1 answer
  • This is the equation and we need to solve for y 2x+y=7
    9·2 answers
  • 12.21 is 3.7 times the number p.
    6·1 answer
  • Combine like terms to simplify the expression. 5x + 4 + 2x + 5
    7·1 answer
  • HURRY!!!!! Hey guys help me with this PI question. Pi = 3.14<br>Thank you!
    12·1 answer
  • Given that the perimeter of the equilateral triangle below is 63 , solve for x
    11·1 answer
  • Travis has $1,500 in a savings account. He deposits $75. How much interest will he earn after 2 years at a simple annual interes
    13·1 answer
  • What is 1+1? Show your work.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!