22018461
22018461
16-03-2021
Mathematics
contestada
Solve 7x – 9 = 28 + 4(x – 1).
Respuesta :
sanamo
sanamo
16-03-2021
7x - 9 = 28 + 4x - 4
7x - 4x = 28 - 4 + 9
3x = 33
x = 11
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