29 January, 23:14
How to check answer for 3 (2x-2) - 4 (x+7) + 20=-8
30 January, 01:10
3 (2x-2) - 4 (x+7) + 20 = - 8 = > x = 13
3 (2x-2) - 4 (x+7) + 20 = - 8
6x-6 - (4x+28) + 20 = - 8
6x-6-4x-28-20 = - 8
6x-4x-6-28 = - 8
2x - 34 = - 8
2x - 34 + 34 = - 8 + 34
2x = 26
x = 13
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