resuelva:
8 X + 5=45
6 X-9=54
4 X + 9 =72
3 X -8= 28
7 X +6=60

Respuestas

Respuesta dada por: crisandrus
2
8 X + 5=45
8X =45-5
8X = 40
X =40/8
X=5


6 X-9=54
6X = 54+9
6X = 63
X = 63/6 simplificando
X = 21 /2

4 X + 9 =72
4X = 72-9
4X = 63
X = 63/4


3 X -8= 28
3X = 28+8
3X = 36
X = 36/3
X = 12


7 X +6=60
7X = 60-6
7X = 54
X = 54/7
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