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
seraphim [82]
3 years ago
5

What is the solution to the system of equations? {x+y=7x=y+3

Mathematics
1 answer:
abruzzese [7]3 years ago
7 0
<h3>Answer:</h3>

x=5, y=2

<h3>Explanation:</h3>

The second equation gives an expression for x that can be substituted into the first equation.

... (y+3) +y = 7 . . . . . .substitute y+3 for x

... 2y + 3 = 7 . . . . . . . colect terms

... 2y = 4 . . . . . . . . . . subtract 3 from both sides

... y = 2 . . . . . . . . . . . . divide both sides by 2

Using the expression for x, we can find its value.

... x = y + 3

... x = 2 + 3 . . . . . . . . . substitute for y

... x = 5

The solution is (x, y) = (5, 2).

You might be interested in
Which algebraic expression means “three more than a number squared”? 2 n + 3 2 n minus 3 n squared + 3 n squared minus 3
kap26 [50]

Answer:

n^{2} +3

Step-by-step explanation:

we have n squared, which is at the beginning, and then three more than that would be +3

4 0
3 years ago
Read 2 more answers
I need help with these
3241004551 [841]

1. a= 60 (vertically opposite angles)

b= 360-(60+60)=240/2= 120 (angles at a point)

c= 120 (vertically opposite angles with b)

2. c= 90-40= 50 (vertically opposite angles)

b=a=360-90-90=180/2=90 (angles at a point)

3. a= 180-52-51= 77 (angles on a straight line)

b=52 (angles at a point)

d=51 (angles at a point)

c=77 (angles at a point)

4. a= 60 (vertically opposite angles)

b= 360-(60+60)=240/2= 120 (angles at a point)

c= 120 (vertically opposite angles with b)

e=65

d=f= 360-65-65=230/2=115

h=55

i=g=360-55-55=250/2=125

5. b=163

a=90

e=70

d=360-70-70=220/2=110

c=360-163-163=34/2=17

Hope this helps!

4 0
3 years ago
Please help me with this homework
zmey [24]

Answer:

-5/-4 or 1.25

Step-by-step explanation:

:)

Hope this helps!

-Josh

6 0
3 years ago
What is the area of parallelogram ABCD?
Nadya [2.5K]

Answer:

13 Square units

5 0
1 year ago
Read 2 more answers
Which function describes this graph?<br><br><br> f( x)=x+2<br> f( x)=4x+2<br> f( x)= x+2
sladkih [1.3K]

Answer:

f(x) = 1/4x +2

Step-by-step explanation:

The y-intercept formula is y = mx + b. b is the y-intercept. The line crosses the y-axis at 2, so the y-intercept is 2. m is the slope and it is rise/run (rise over run). It rises (from the y-axis) once and runs 4 times. Therefore, the slope is 1/4. The equation is f(x) = 1/4x +2.

4 0
3 years ago
Other questions:
  • 3,857 rounded to the nearest thousand
    7·2 answers
  • Find the slope of the line that passes through (-1,6) and (15,6)
    7·1 answer
  • Use the properties of limits to help decide whether the limit exists. If the limit​ exists, find its value. ModifyingBelow lim W
    9·1 answer
  • What is 2 over 100 and x over 400. What is x
    10·2 answers
  • A pool is filling up at a rate 7 gallons per minute. which equation best represents y, the total amount in the pool after x minu
    5·2 answers
  • The coordinates of the center are 0,-3 and length of the diameter is 6 find equation so I know it’s x^2+(y+3)^2= I just don’t kn
    11·2 answers
  • Trina is cutting ribbon to make bows if she has 7.5 yards of ribbon and she needs 0.4 yards for each bow how many bows can she m
    7·2 answers
  • PLEASE!!!! I NEED AN ANSWER
    13·1 answer
  • 7. If y varies jointly with x and z, and y = 24
    8·1 answer
  • Stanley can purchas a 15.4-ounce bottle of
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!