Me ajudem nessas equaçoes
2 (x + 1) – 3 (2x – 5) = 6x – 3 resposta(x=2)
x – (2x – 1) = 23 resposta(x=-22)
2x – (x – 1) = 5 – (x – 3) resposta(x=7/2)
2 (x + 1) – 3 (2x – 5) = 6x – 3 resposta(x=2)
x – (2x – 1) = 23 resposta(x=-22)
2x – (x – 1) = 5 – (x – 3) resposta(x=7/2)
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17-4x = 6x-3
17+3 = 6x+4x
20=10x
x=20/10..............x=2
b) x-2x=23-1
- x = 22 (-1)
x= - 22
c) 2x-x+1= 5-x+3
x+x = 5+3-1
2x= 7
x= 7/2
2x + 2 - 6x + 15 = 6x - 3
2x - 6x - 6x = - 3 - 2 - 15
- 10x = - 20 (×⁻¹)
x = 20 / 10
x = 2
x – × (2x – 1) = 23
x - 2x + 1 = 23
x - 2x = 23 - 1
- x = 22 (×⁻¹)
x = - 22
2x – × (x – 1) = 5 – × (x – 3)
2x - x + 1 = 5 - x + 3
x + x = 5 + 3 - 1
2x = 7
x = 7 / 2 ou 3,5