. If 20 x + 25 y = 55 and 25 x + 20 y = 35, then x + y = ?
(A) 90 (B) 2
(C) 25
Answers
Answered by
0
Answer:
X = minus 1
y= plus 3 so answer =2
thank you
Answered by
0
Answer:
the answer is 2
Step-by-step explanation:
20x + 25y = 55
y = 2 1/2
x = 2 1/2
x + y = 2 1/2 + 2 1/2 = 5
5 + 5 = 10
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