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gabrielmedeiro
@gabrielmedeiro
October 2020
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Aqui uma tarefa gigantebde expressoes algebricas.
1)simplifique as expressoes algebricas:
a)15x + 3 - 9x
b) 7 × (x+4)-16
c) 9a + 5 - 8 + 7a
d) 5 × (4b - 3) - 37b
e) (54× + 18) + 2 × (5-7w)
f) (8+6t) × - (27t - 3) + 4
2) usando contas, determine o valor numerico das seguintes expressoes algebricas:
a)7y + 5y - 8, para y = 3
b) 6 × (x-2) + 5 - 3x, para x = 8
c) 4 × (a + 2b) - 15, para A = -6 e b = 5
d) 6x - 12y + 3 × (6y +3), para x = 2 e y = 1/2 (fracao)
e) (7z - 3) × 4 - ( -9z) : (-3), para Z = -3
o resto esta nestas fotos, obrigado.
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As contas de: 9-2,014. 12,8x2,35. e 11,94 : 6? alguem pfv me ajuda
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