yokwegram00
yokwegram00 yokwegram00
  • 25-01-2017
  • Mathematics
contestada

Please explain : y = -x + 8. y = 4x - 7 solve system of equation?

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 25-01-2017
since both equatl y set them equal toeach other

8-x=y=4x-7
8-x=4x-7
add x both sides
8=5x-7
add 7 to both sides
15=5x
divide by 5
3=x

sub back

y=-x+8
y=-3+8
y=5

the solution is
(x,y)
(3,5)


Answer Link
dnso dnso
  • 25-01-2017
I thin x=3 and y=5. If I have enough time I will include the steps
Answer Link

Otras preguntas

What is the value of x in the equation 3x – y = 18, when y = 27?
Find s8 for the following geometric sequence: 3, –6, 12, –24.
Brian has $88 in his saving account . If he saves $3.50 per week , how long will it take him to save $200 in his account
Lucinda wants to build a square sandbox, but she has no way of measuring angles. Explain how she can make sure that the sandbox is square by only measuring leng
Georgina’s bank account has a current balance of -$25.50. If she deposits $120 into the account each month, how much money will she have in the account after 4
Do 12/15 and 8/18 have the same value? Explain your answer
Summarize, in a few sentences, the facts or gossip about the Cunningham family.
The point-slope form of the equation of the line that passes through (–4, –3) and (12, 1) is y – 1 = (x – 12). What is the standard form of the equation for thi
Read the following sentence then choose the answer below that best identifies the sentence variation strategies used:When Trevor got about a foot away, Johnny c
Solve the system of linear equations below. X+y=4 2x+3y=0