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Roy123
@Roy123
December 2019
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A soma de dois números e 28 é a diferença,10.Calcule a diferença entre os quadrados desses números .Em seguida,Determine os dois números e verifique a solução
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mozarth11
X + y = 28
x - y = 10 --> x = 10+y
10+y + y = 28
10+2y = 28
2y = 28-10
2y = 18
y = 18/2
y = 9
x = 10+y
x = 10+9
x = 19
x + y = 28
19 + 9 = 28
28 = 28
x - y = 10
19 - 9 = 10
10 = 10
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x - y = 10 --> x = 10+y
10+y + y = 28
10+2y = 28
2y = 28-10
2y = 18
y = 18/2
y = 9
x = 10+y
x = 10+9
x = 19
x + y = 28
19 + 9 = 28
28 = 28
x - y = 10
19 - 9 = 10
10 = 10