gabrielstallworth
gabrielstallworth gabrielstallworth
  • 26-04-2020
  • Mathematics
contestada

Answer the following questions to the best of your ability. Solve each system of equations using substitution or elimination.

y = x + 4
3x -2y =-7

help me please

Respuesta :

SH1NRAA
SH1NRAA SH1NRAA
  • 26-04-2020

y = x + 4

3x - 2y = -7

We can substitute the first equation into the second

3x - 2(x + 4) = -7

3x - 2x - 8 = -7

x - 8 = -7

x = 1

y = 1 + 4

y = 5

So, the answer is (1, 5)

Answer Link
TREKKER
TREKKER TREKKER
  • 26-04-2020

Answer:

(1,5)

Step-by-step explanation:

Use substitution, and plug the first equation into the 2nd one:

3x-2(x+4)=-7 -->

3x-2x-8 = -7 -->

x - 8 = -7

x = 1

Plug this into the first equation:

y = 1 + 4

y = 5

(1,5)

Answer Link

Otras preguntas

How was Islam able to cross the Sahara Desert in the eighth century?
The length of a rectangle is 11 in. longer than its width. The perimeter of the rectangle is 86 in.What is the length of the rectangle?       38 in.       32 in
Approximately how many years of church history does the book of Acts cover?
A nonexample about ratio
" when striking, the pike, a predatory fish, can accelerate from rest to a speed of 4.0 m/s in 0.11 s." The question is " how far does the pike move during hi
What is the strongest reason John jay gave for signing the constitution ? Help please
Find the unit rate and round to the nearest cent?
What four concepts are discussed in the political writings of John Milton?
What country did Japan defeat in its FIRST foreign war during the Meiji period?
The specific heat capacity of gold at 25°C is 1.290×10-1 J/g/K. For a 5.25×102 g sample of gold, how much will the temperature increase if 6.908×102 J of energy