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
Tom [10]
2 years ago
9

Use substitution to solve each system of equations. y = 5x -2 3 x- 5y =4

Mathematics
2 answers:
Nezavi [6.7K]2 years ago
7 0
  • x = 3/11
  • y = -7/11

Step-by-step explanation:

y = 5x - 2…Equation 1

3x - 5y = 4…Equation 2

Subtitute value of y to Equation 2 :

3x - 5(5x - 2) = 4

3x - 25x + 10 = 4

-22x + 10 = 4

10 - 4 = 22x

6 = 22x

6/22 = x

<u>3/11 = </u><u>x</u>

Subtitute value of x to one of Equation :

for example Equation 2…

3x - 5y = 4

3(3/11) - 5y = 4

9/11 - 5y = 4

9/11 - 4 = 5y

(9 - 44)/11 = 5y

(-35)/11 = 5y

(-35)/11 × 1/5 = y

<u>-7/11 = y</u>

Mrrafil [7]2 years ago
3 0
3x - 5(5x - 2) = 4

3x - 25x + 10 = 4
-22x = 4 - 10
-22x = -6 ➗ -22
X = 3/11
You might be interested in
231 km 811 m + 485 km 829 m
Eva8 [605]
231+811+485+829=2356km



6 0
2 years ago
Read 2 more answers
F(x)=2x+3 find the f(4)<br><br> a.11 b.8<br><br> c.9 d.5
Ivan
The answer is a because you fill in 4 where 2(x) is for the x
5 0
3 years ago
What is 5(2x - 2y) - (4x + 3y)
EastWind [94]

Answer:

6x - 13y

Step-by-step explanation:

5(2x - 2y) - (4x + 3y)

10x - 10y - 4x - 3y

10x - 4x - 10y - 3y

6x - 13y

7 0
2 years ago
What is the solution set to the inequality 5(x – 2)(x + 4) &gt; 0?
ankoles [38]

Answer:

Step-by-step explanation:

The Answer is {x| x <-4 or x> 2}

8 0
2 years ago
Read 2 more answers
Divide the fractions whit whole nymber and simplify
Georgia [21]

Answer:

Which fractions

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • P(x)=12x-5x+20 solve for p(x)
    9·1 answer
  • Y=(x-1)(x+7)<br> what are the x-intercepts?
    15·1 answer
  • Given the equation y-4=3/4(x + 8) in point-slope form, identifty the equation of the same line in standard form.
    15·1 answer
  • Dylan got his math test back and saw a -12 1/2 points on the top of his math test. The grade was 100% because he earned extra cr
    9·1 answer
  • Count by fourths from 0 to 4.
    7·2 answers
  • Please hurry I will mark you brainliest
    6·1 answer
  • A rectangle's base remains 0.5 cm while its height changes at a rate of 1.5 cm/min.
    9·1 answer
  • The cookies Yoko wants come in packs of 9. She needs 37 of these cookies for a party. How many packs should she buy?
    12·1 answer
  • Find the GCF of the numbers using lists of factors. 1. 8,36. 2. 18,72. 3. 14, 28, 49​
    11·1 answer
  • 2 √(5) - √(5) + 4 √(5) + √(3)<br> simplify
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!