Respuesta:
a + b = 4.
5x + 2a = 18 – 2b
5x + 2a + 2b = 18
5x + 2(a+b)= 18
5x+ 2(4)= 18
5x+ 8= 18
5x= 10
x= 2
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Respuesta:
a + b = 4.
5x + 2a = 18 – 2b
5x + 2a + 2b = 18
5x + 2(a+b)= 18
5x+ 2(4)= 18
5x+ 8= 18
5x= 10
x= 2