M - S = D ........(1)
M = minuendo
S = sustraendo
D = diferencia
M + S + D = 324 ................(2)
en (1) despejamos M en:
M - S = D
M = D + S
reemplazamos en (2)
M + S + D = 324
D + S + S + D = 324
2(S + D) = 324
S + D = 162
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M - S = D ........(1)
M = minuendo
S = sustraendo
D = diferencia
M + S + D = 324 ................(2)
en (1) despejamos M en:
M - S = D
M = D + S
reemplazamos en (2)
M + S + D = 324
D + S + S + D = 324
2(S + D) = 324
S + D = 162