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Kellyalisson
@Kellyalisson
April 2019
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Juste le numéro 52 svp en mathématique merci d avance
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maudmarine
Verified answer
A = 2x + 4 - (8x - 9)
A = 2x + 4 - 8x + 9
A = 2x - 8x + 4 + 9
A = - 6x + 13
B = 3a - 7 + (2a + 5) + (3a - 10)
B = 3a - 7 + 2a + 5 + 3a - 10
B = 3a + 2a + 3a - 7 - 10 + 5
B = 8a - 12
C = 3t + 0,1 - (4,5 - 6t) + [(12 - (3,2 + 1)]
C = 3t + 0,1 - 4,5 + 6t + [12 - 2,2]
C = 3t + 0,1 - 4,5 + 6t + 9,8
C = 3t + 6t + 0,1 + 9,8 - 4,5
C = 9t + 5,4
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kellyalisson
merci bc
maudmarine
De rien
mhennihalouma
A- 2x +4-(8x-9)
=
2X+4-8x+9
=6x+13
B-3a-7+(2a+5)+(3a-10)
=3a-7+2a +5+3a-10
=8a-12
C-3t+0,1-(4,5-6t)+(12-(3,2+t))
=3t+0,1-4,5+6t+12-3,2-t
=8t+4,4
0 votes
Thanks 0
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Juste le numero 51 je n'y arrive vraiment pas merci
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Verified answer
A = 2x + 4 - (8x - 9)A = 2x + 4 - 8x + 9
A = 2x - 8x + 4 + 9
A = - 6x + 13
B = 3a - 7 + (2a + 5) + (3a - 10)
B = 3a - 7 + 2a + 5 + 3a - 10
B = 3a + 2a + 3a - 7 - 10 + 5
B = 8a - 12
C = 3t + 0,1 - (4,5 - 6t) + [(12 - (3,2 + 1)]
C = 3t + 0,1 - 4,5 + 6t + [12 - 2,2]
C = 3t + 0,1 - 4,5 + 6t + 9,8
C = 3t + 6t + 0,1 + 9,8 - 4,5
C = 9t + 5,4
=2X+4-8x+9
=6x+13
B-3a-7+(2a+5)+(3a-10)
=3a-7+2a +5+3a-10
=8a-12
C-3t+0,1-(4,5-6t)+(12-(3,2+t))
=3t+0,1-4,5+6t+12-3,2-t
=8t+4,4