diamondthomassss diamondthomassss

11-04-2021
Mathematics

contestada

What is the intersection (x, y) of the two lines generated by the 2 equations:
y= x+3
y=-x +7

What is the intersection x y of the two lines generated by the 2 equations y x3 yx 7 class=

Respuesta :

Jachese Jachese

11-04-2021

Answer:

x=2

y=5

Step-by-step explanation:

y= x+3...(1)

y= -x+7...(2)

(1) + (2):

y+y= (x+3) + (-x+7)

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

2y= 10

y= 5

By substituting y=5 into (1),

we have

5= x+3

x+3=5

x= 5-3

x= 2

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