Arkconic
Arkconic Arkconic
  • 05-07-2017
  • Mathematics
contestada

Consider the following pair of equations: y = x + 4 y = –2x – 2 Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form.

Respuesta :

WafiqAhmed
WafiqAhmed WafiqAhmed
  • 05-07-2017
Y = x+4 (1)
Y = -2x-2 (2)

(1)=(2)

X+4=-2x-2
3x=-6
X=-2

Sub x=-2 into (1),

Y= (-2)+4
Y= 2

Thus, the solution is (-2,2)
Answer Link

Otras preguntas

why was bismarck eager to gain control over the territories of Alsace and Lorraine?
4x + 2y + z = 8 solve for x, y, and z
Which of the following is formed from erosion A) lake B) delta C) stream D) aquifer
10 points help pleazs
the freezing point of water is the same as ice's __________ point. a. boiling b. melting c. condensing d. sublimation
What land battle ended revolutionary war and what year?
John is about to roll a six-sided, fair number cube 60 times. He wants to predict how many times the cube will land on an even number. He makes a prediction of
Liz takes shelter under a tree. the tree is uprooted in the storm and crashes to the ground, leaving liz trapped beneath it, alone and desperate.this most likel
Are mass vs. density the same
Show how you got from 135 to to 175 counting by fives