Answer:

First Equation:

(first problem) : x-y=17

(second problem) : x + y = 35

(third problem) : x + y = 50

Second Equation:

(first problem) : x = 2y + 4

(second problem) : y - 10 = 2 (x - 10)

(third problem) : 5x + y = 130

Solution:

x,y ordered pair

(first problem): 30 13 ( 30,13 )

(second problem): 15 20 ( 15,20 )

(third problem): 20 30 ( 20, 30 )

Step-by-step explanation:

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