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
Eddi Din [679]
3 years ago
12

Solve by subtraction y=-2x-4 y=2x-12 please show work!

Mathematics
2 answers:
andrew11 [14]3 years ago
5 0

Answer:

(2, -8)

Step-by-step explanation:

Add the two equations to solve.  The x-values are cancelled out.  Solve for y.

<em>    y = -2x - 4</em>

<u><em>+  y = 2x - 12</em></u>

<em> 2y = -16</em>

y = -8

Now, plug in the y-value into one of the equations to solve for x.

<em>y = 2x - 12</em>

<em>-8 = 2x - 12</em>

<em>(-8) + 12 = (2x - 12) + 12</em>

<em>4 = 2x</em>

<em>(4)/2 = (2x)/2</em>

x = 2

The solution is (2, -8).

Luden [163]3 years ago
3 0

Answer:

x=2, y = -8

Step-by-step explanation:

y=-2x-4

y=2x-12

-----------------

Subtract the two equations

y=-2x-4

-y=-2x+12

-----------------

0 = -4x +8

Subtract 8 from each side

-8 = -4x+8-8

-8 = -4x

Divide by -4

-8/-8 = -4x/-4

2 =x

Then solve for y

y = -2x-4

y = -2(2) -4

y = -4-4

y = -8

You might be interested in
XZ = 13 and YZ = 4 Find XY
prohojiy [21]

Answer:

iddpd

Step-by-step explanation:

kddjdjdkdodidjdjddjdidodododkdjddjdjdjdidodldlddnnxkddo

7 0
2 years ago
What is the value of x?
leva [86]
THE ANSWER IS D 8 BECAUSE I DID THE MATH
4 0
3 years ago
An architect notices that the scale on a blueprint he is using has been torn off. However, he sees that a 12.5-ft. wall that has
Leviafan [203]

1,170 feet by 1,530 feet.

5 0
3 years ago
Read 2 more answers
What’s the side of 200cm in a square
Artemon [7]

To find the length of a side of a square fins the square root of the area.

Area = 200 cm^2

Side = √200

Side = 10√2 (Exact length)

or 14.142 cm's ( round the decimal answer as needed.)

3 0
3 years ago
Problem Solving Strategy: Write an
cluponka [151]

Hence, the equation for the question (7) is n + 19 = 84 and equation for (8) is 3n = 12. It can be solved by linear equation in one variable.

What is a linear equation in one variable?

A linear equation in one variable is written as ax+b = 0. Here, a and b are constants and x is a variable.

(7)

Consider n number of baseball cards does Mike have. Since this is 19 less then the cards Allan have hence, as you add 19 in n then it will give 84.

n + 19 = 84

(8)

Consider the speed of Michelle is n. As, it is 3 times less than the speed of the Jamie hence, it you multiply 3 with n then it will give 12.

    3n = 12

Hence, the equation for the question (7) is n + 19 = 84 and equation for (8) is 3n = 12.

Learn more about linear equation in one variable from the following link:

brainly.com/question/85774

#SPJ4

3 0
1 year ago
Other questions:
  • The equation 2y+53=165 represents the situation “ Joel spent $165 on a pair of jeans and two shirts at the same price.” What doe
    15·2 answers
  • Let f(x)=6(2)^x−1+4
    5·2 answers
  • a movie theater has 24 screens. the ratio of action films to other films is 1:2 in the summer. how many action films are shown?
    6·1 answer
  • a recipe for sweet potato casserole calls for 3/4 cup of milk. Martina has 6 cups of milk. How many sweet potato casseroles can
    8·2 answers
  • What is the value of H
    15·1 answer
  • -2x + 12 + 10x = 4(2x + 3)​
    14·2 answers
  • Which equations represent the data in the table? Check
    6·1 answer
  • Find the mode of the data.<br> 1, 2, 1, 3, 3, 4, 1<br> The mode is
    12·2 answers
  • Cody and Lisa both went bowling last weekend, but not together. Cody went during open bowling time,
    11·1 answer
  • Any tips for doing complicated order of operation problems. Algebra 2
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!