Solve the system of equations algebraicallyy = 2x - 35x + 2y = 39

7x - 2y = 39

5x + 2y = 21

Add both the equations together  

12x = 60

x = 5

substitute this value for x into equation 1

35 - 2y = 39

-2y = 4

y = -2

The ordered pair (5,-2) satisfies each system.

Step-by-step explanation:

im not much of a algebra an btw

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation:

(2x + 16) + (x) = 180

step-by-step explanation:

given,

abcd is a quadrilateral inscribed in a circle

angle a is labeled x plus 16, (x + 16)

angle b is labeled x degrees, (x)

angle c is labeled 6x minus 4, (6x – 4)

angle d is labeled 2x plus 16, (2x + 16)

what equation can be used to solve for angle b?

we know that the sum of the opposite angles of a simple quadrilateral inscribed in a circle is 180 degrees.

angle b is opposite angle d

therefore, angle b + angle d = 180

(x) + (2x + 16) = 180 

same as (2x + 16) + (x) = 180