Ответ:
Объяснение:
9y = 51+3x;
y = 51+3x/9
7x - 102 +6x/9 = -24
63x - 102 - 6x = -24
57x = 78
x = 78/57
y = 51+26/57
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Ответ:
Объяснение:
9y = 51+3x;
y = 51+3x/9
7x - 102 +6x/9 = -24
63x - 102 - 6x = -24
57x = 78
x = 78/57
y = 51+26/57