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silvaneiaf012p5ckp9
@silvaneiaf012p5ckp9
June 2023
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gente quem puder por favor me ajuda porque a minha prova de matemática é amanhã
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b) 9x = 6x + 12
9x - 6x = 6x + 12 - 6x
9x - 6x= 12
(9-6) x
3x = 12
3x / 3 = 12/3
x= 12/3
x= 4
------------------------------
c) 5x -1 = 3x+11
5x-1-3x=3x+11-3x
5x-1-3x=11
5x-3x=11+1
(5-3)x
2x=11+1
2x=12
2x/2=12/2
x=12/2
x=6
------------------------------
d) 2x+8=x+13
2x+8-x=x+13-x
2x+8-x=13
2x-x=13-8
2x-x
2x-1x
(2-1)x
1x
x=13-8
x=5
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9x - 6x = 6x + 12 - 6x
9x - 6x= 12
(9-6) x
3x = 12
3x / 3 = 12/3
x= 12/3
x= 4
------------------------------
c) 5x -1 = 3x+11
5x-1-3x=3x+11-3x
5x-1-3x=11
5x-3x=11+1
(5-3)x
2x=11+1
2x=12
2x/2=12/2
x=12/2
x=6
------------------------------
d) 2x+8=x+13
2x+8-x=x+13-x
2x+8-x=13
2x-x=13-8
2x-x
2x-1x
(2-1)x
1x
x=13-8
x=5