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
elena-s [515]
3 years ago
8

3) Solve the System of Equations using Elimination/Combinations. (5 points)

Mathematics
1 answer:
Schach [20]3 years ago
3 0

Answer:

(1, 2 )

Step-by-step explanation:

Given the 2 equations

- 2x - y = - 4 → (1)

x + 2y = 5 → (2)

Multiplying (2) by 2 and adding result to (1) will eliminate x- term

2x + 4y = 10 → (3)

Add (1) and (3) term by term to eliminate x

0 + 3y = 6

3y = 6 ( divide both sides by 3 )

y = 2

Substitute y = 2 into either of the 2 equations and solve for x

Substituting into (2)

x + 2(2) = 5

x + 4 = 5 ( subtract 4 from both sides )

x = 1

solution is (1, 2 )

You might be interested in
Joe's batting average is 0.264.What digit in 0.264 is in the hundredths place
KATRIN_1 [288]
The 6 because it is Two digits far from the dot
8 0
4 years ago
Another algebra question :/
pav-90 [236]

Answer:

1

Step-by-step explanation:

Co-efficient means the integer in front of the variable

The co-efficient for -4x^3 would be -4 like that

5 0
4 years ago
Read 2 more answers
Find the value of x.<br> 12<br> 12<br> x = [?]
daser333 [38]

Step-by-step explanation:

step 1. The segment x is made up of 2 equal lines which are connected in the middle to another segment 12 units long.

step 2. the intersection of these two segments must create a 90° angle because the two lines are equal.

step 3. The lower segments are identical to the upper segments.

step 4. therefore x = 11(2) = 22.

8 0
3 years ago
What is the answer for number 1
poizon [28]
R = -2 :) hope this helps
8 0
3 years ago
Read 2 more answers
Write the sentence as an inequality. A number x is no less than –8.
Law Incorporation [45]

x ≥ -8

Answer choice D is correct

5 0
3 years ago
Other questions:
  • A motorcyclist travels 98 km in 1 hour 10 minutes.calculate his average speed ,giving your answer in kilometres per hour.
    8·2 answers
  • Solve for b2 in A = h ( b1 + b2 ), if A = 16, h = 4, and b1 = 3.
    11·2 answers
  • What number should be added to both sides of the equation to complete the square
    5·1 answer
  • Julio sold candles for three weeks. Let x represent the number of candles he sold the first week. He sold twice the number of ca
    15·1 answer
  • Which expression is equivalent to 3(2x + 4)?​
    8·2 answers
  • What is the x-intercept of the graph of 3x + 12 = -6?
    9·1 answer
  • Please help :( &lt;3 I really need 100 so I could have a A in math please. ​
    13·2 answers
  • SUPER EASY AND ILL GIVE BRAINLIEST
    14·2 answers
  • Plz help I need help
    15·1 answer
  • Enter an algebraic expression for the word expression. 7 decreased by n the expression is ?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!