Seudónimo
Seudónimo
29-10-2020
Mathematics
contestada
I need help with angles!!!!!!!!
Respuesta :
jonesjrroberte
jonesjrroberte
29-10-2020
12
AB = x + 4
BC = 3x + 7
AC = 43
AB + BC = AC
x + 4 + 3x + 7 = 43
Combine and solve
4x + 11 = 43
4x = 32
x = 8
AB = x + 4 = 8 + 4 = 12
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