Explicación paso a paso:
3x -2 ÷ 7 = 4
entonces:
3 • 10 = 30
30 - 2 = 28
28 ÷ 7 = 4
x = 30
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30
Explicación paso a paso:
3x -2 ÷ 7 = 4
entonces:
3 • 10 = 30
30 - 2 = 28
28 ÷ 7 = 4
x = 30