Respuesta:
1. a +b = 13
2. a + b = 18
Explicación paso a paso:
a.
2a + 5 = 17
2a = 17 - 5
2a = 12
a = 12/2
a = 6
3b - 14 = 7
3b = 7 + 14
3b = 21
b = 21/3
b = 7
a + b = 6 + 7 = 13
Verificación 1:
2(6) + 5 = 12 + 5 = 17
3(7) - 14 = 21 - 14 = 7
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b.
3a - 4 = 20
3a = 20 + 4
3a = 24
a = 24/3
a = 8
√(b-1) = 3
(b-1) = 3²
b - 1 = 9
b = 9 + 1
b = 10
a + b = 8 + 10 = 18
Verificación 2:
3(8) - 4 = 24 - 4 = 20
√((10)-1) = √ ( 10 - 1) = √9 = 3
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a² + 1 = 50
a² = 50 - 1
a² = 49
a = √49
a = 7
Falta el dato en 3(b-4)= ?
