Respuesta:
Julián: 3x
Luisa: 3x - 5
Ricardo: 2(3x - 5)
a)
3x + 3x - 5 + 2(3x - 5) = 37
6x - 5 + 6x - 10 = 37
12x - 5 - 10 = 37
12x - 15 = 37
12x = 37 + 15
12x = 42
x = 42 ÷ 12
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Verified answer
Respuesta:
Julián: 3x
Luisa: 3x - 5
Ricardo: 2(3x - 5)
a)
3x + 3x - 5 + 2(3x - 5) = 37
6x - 5 + 6x - 10 = 37
12x - 5 - 10 = 37
12x - 15 = 37
12x = 37 + 15
12x = 42
x = 42 ÷ 12