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
Natalka [10]
3 years ago
6

Solve the system using elimination 4x-7y=3 x-7y=-15

Mathematics
2 answers:
BigorU [14]3 years ago
6 0
The answer is 6,3
.......
ehidna [41]3 years ago
5 0

Answer: x=6 and y=3

Step-by-step explanation:

4x - 7y = 3 -------(1)

x - 7y = -15 ------(2)

equation(1) - equation (2)

3x = 18

Divide bothside by 3

x = 18/3

x= 6

also, multiply equation (2) by 4

4x - 28y = -60--------------(3)

subtract equation(3) from equation(1)

21y = 63

divide bothside by 21

y = 63/21

y = 3

You might be interested in
(5x-6)(-x+4) using the box method
Sophie [7]

Answer:

-5x²+26x-24

Step-by-step explanation:

(5x-6)(-x+4)

=5x(-x+4)-6(-x+4)

=-5x²+20x+6x-24

=-5x²+26x-24

4 0
2 years ago
I need help with 1-9 please help!!
professor190 [17]

Answer:

1

Step-by-step explanation:this is so easy

6 0
3 years ago
Sara is 5 ft 10 in tall. To the nearest centimeter how tall is Sara? If 1 inch equals 2.54 centimeters
Novay_Z [31]

Answer:

<em>S</em><em>A</em><em>R</em><em>A</em><em>'</em><em>S</em><em> </em><em>h</em><em>e</em><em>i</em><em>g</em><em>h</em><em>t</em><em> </em><em>i</em><em>s</em><em> </em><em>2</em><em>2</em><em>.</em><em>7</em><em> </em><em>c</em><em>m</em>

Step-by-step explanation:

if 1 inch equals 2.54 cm then 5ft will be:

=5*2.54

=12.7 cm

therefore, sara's height in centimeter:

=12.7+10

=22.7 cm

3 0
3 years ago
Read 2 more answers
Evaluate this expression for the given value of the variable 4 (d+7);d=-2
Paha777 [63]

Exact Form:

d

=

−

7

−

√

47

2

,

−

7

+

√

47

2

d

=

-

7

-

47

2

,

-

7

+

47

2

Decimal Form:

d

=

−

0.07217269

…

,

−

6.92782730

…

6 0
2 years ago
Read 2 more answers
Translate (in terms of x) then solve the algebraic equation. When the sum of a number and 2 is subtracted from 13 the result is
Diano4ka-milaya [45]
13 - (x+2) = 8
subtract 13 from both sides
-(x+2) = -5
divide by -1 to get rid of negative
(x+2) = 5
subtract 2 from both sides
x=3
7 0
3 years ago
Other questions:
  • Shade the cenn diagram to represent the set
    8·1 answer
  • Mayumi hikes 3 miles in 2 hours. Edwin hikes 4 miles in 3 hours. Who takes more time to complete a 12 mile hiking trail? How muc
    5·1 answer
  • Solve the inequality. Graph the solution
    15·1 answer
  • Which phrase best describes the relationship indicated by the scatter plot.
    11·1 answer
  • Match each function with the corresponding function formula when h(x) = 2 – 2x and g(x) = –2 x + 2.
    9·1 answer
  • Helllllllllllllp plzz
    11·1 answer
  • What is the indefinite integral of 1/xln(x^3) dx?
    13·2 answers
  • Which of the lists of letters all have rotational symmetry?
    14·1 answer
  • Jessica is purchasing new photo frame for a photo. What measurement does Jessica need to know about the photo before she starts?
    14·1 answer
  • I need help please
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!