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
lana [24]
3 years ago
5

Find the solution of the system of equations. 3x – 3y = 18 3x – 8y = -2

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
5 0

Answer:

x=10, y=4

Step-by-step explanation:

3x-3y=18

(-)3x-(-)8y=-(-)2   -3x+8y=2   add to first equation to eliminate x

5y=20

y=4

substitute y with 4

3x-3(4)=18

3x=30

x=10

x=10,y=4

You might be interested in
Which equation is equivalent to
Aleksandr [31]

Answer:

(4x^2 +9)(4x^2-9) =0

Step-by-step explanation:

16x^4 - 18 = 0

Rewriting

(4x^2)^2 - 9^2 =0

We notice that this is the difference of squares

a^2 - b^2 = (a-b)(a+b)

(4x^2 -9)(4x^2+9) =0

5 0
3 years ago
Read 2 more answers
Please help 12+2x-14x+8=
bulgar [2K]

Answer:

-12x+20

Step-by-step explanation:

12+2x-14x+8

Add constants: 20+2x-14x

Add variables: 20-12x

Reorder: -12x+20

8 0
3 years ago
Read 2 more answers
Help me lol !! will give brainleist
katovenus [111]

Answer:

28

Step-by-step explanation:

Since, Sum of triangle is equal to 180°

180 = 2x + 50 + 3x - 10

180 = 5x + 40

180 - 40 = 5x

140 = 5x

140/5 = x

28 = x

3 0
3 years ago
Read 2 more answers
ME ajudem porfavor não aguento mais, tá muito dificil
mihalych1998 [28]

Answer:

say it in English plZz

I can't understand Spanish or whatever ur saying sorry

8 0
3 years ago
ANSWER ASAP/GIVING HIGH RATING DUE SOON,PLS JUST ANSWER I HAVE AKOT OF WORK DUE IN 10 MINS​
svp [43]
He would save $1 switching
5 0
3 years ago
Other questions:
  • Shoe sales very soon company were $25.9 billion. See other expected to increase by about 20% in the next year. Find the projecte
    15·1 answer
  • Find four consecutive integers with a sum of -66
    5·1 answer
  • How do you find the absolute value of a positive number ?
    14·2 answers
  • ~HELP WITH MATH PLZ~
    11·1 answer
  • Regina purchased 1.4 pounds of turkey breast from her local deli for $7.49 per pound . To the nearest cent , how much did she pe
    6·2 answers
  • Jose's gas tank is 3/8 full. After he buys 6 gallons of gas, it is 3/4 full. How many gallons can Jose's tank hold?
    5·1 answer
  • Which system is equivalent to<br> y=9x2.<br> [x+y=5
    6·1 answer
  • Solve for x: 3(x-4)=12
    8·2 answers
  • Someone please help
    15·1 answer
  • If an object is dropped from the height of 54 feet,
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!