lawri520
lawri520
28-08-2017
Mathematics
contestada
5y - 3z + 4y -1z - 3y; y = 3 and z = -2
Respuesta :
Handersen
Handersen
28-08-2017
5(3)-3(-2)
15-(-6)=
15+6=21
a negative plus a negative is a positive so its 21
4(3)-3(-2)
12-(-6)
12+6=18
21+18=39
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