20 point quickly 5. solve by substitution. find the x, y ordered pair that works for both equations. you must use substitution, and show your work. the recording from the top of the page may . x – 2y = -2 and x – 4y = 10

the ordered pair is (-14,-6)

Step by step:

x – 2y = -2    (Eq. 1)

x – 4y = 10   (Eq. 2)

Isolate x in Eq. 2:

x = -2 + 2y

Substitute that solution x in Eq. 2:

x - 4y = 10

-2 + 2y - 4y = 10

Solve for y:

-2 - 2y = 10

-2y = 10 + 2 = 12

y = -6

Then calculate value for x using the above value for y

x = -2 + 2y

x = -2 + 2(-6) = -14

The solution is (x,y)=(-14,-6)    

1)is not similar since corresponding sides are not in the same ratio

2)are similar since corresponding sides are in the same ratio and corresponding angles are equal

hope it will

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