Explicación paso a paso:
99x - 12 = -111
99x = -111 + 12
99x = -99
x = -99/99
x = -1
comprobación:
99(-1) - 12 = -111
-99 - 12 = -111
-111 = -111
16x + 17 - 4x = 6x + 11
12x + 17 = 6x + 11
12x - 6x = 11 - 17
6x = -6
x = -6/6
16(-1) + 17 - 4(-1) = 6(-1) + 11
-16 + 17 + 4 = -6 + 11
5 = 5
23x + 14 = 50x - 40 - 54
23x + 14 = 50x - 94
23x - 50x = -94 - 14
-27x = -108
x = 108/27
x = 4
23(4) + 14 = 50(4) - 40 - 54
92 + 14 = 200 - 40 - 54
106 = 106
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Explicación paso a paso:
99x - 12 = -111
99x = -111 + 12
99x = -99
x = -99/99
x = -1
comprobación:
99(-1) - 12 = -111
-99 - 12 = -111
-111 = -111
16x + 17 - 4x = 6x + 11
12x + 17 = 6x + 11
12x - 6x = 11 - 17
6x = -6
x = -6/6
x = -1
comprobación:
16(-1) + 17 - 4(-1) = 6(-1) + 11
-16 + 17 + 4 = -6 + 11
5 = 5
23x + 14 = 50x - 40 - 54
23x + 14 = 50x - 94
23x - 50x = -94 - 14
-27x = -108
x = 108/27
x = 4
comprobación:
23(4) + 14 = 50(4) - 40 - 54
92 + 14 = 200 - 40 - 54
106 = 106