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MarianeSouza123
@MarianeSouza123
December 2019
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Responda as equções:
1) 3x+5=17
2) 5x-40=2x
3)4.(2x-1)=7.(16x-8)
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bárbaradalri
1) 3x + 5 = 17
3x = 17 - 5
3x = 12
x =
x = 4
2) 5x - 40 = 2x
5x - 2x = 40
3x = 40
x =
x = 13,3 (aproximadamente)
3) 4(2x-1) = 7(16x-8)
8x - 4 = 112x - 56
112x - 8x = 56 - 4
104x = 52
x =
x = 0,5
2 votes
Thanks 1
MarianeSouza123
Muito obrigada, postei mais equações, se puder ajudar....
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3x = 17 - 5
3x = 12
x =
x = 4
2) 5x - 40 = 2x
5x - 2x = 40
3x = 40
x =
x = 13,3 (aproximadamente)
3) 4(2x-1) = 7(16x-8)
8x - 4 = 112x - 56
112x - 8x = 56 - 4
104x = 52
x =
x = 0,5