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Réponse :
Explications étape par étape
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Équation à résoudre :
2x + 5 =5x-4
5 + 4 = 5x - 2x
9 = 3x
x = 9/3
x = 3
3x-8=8x+2
8x - 3x = -8 - 2
5x = -10
x = -10/5
x = -2
2x+1=x-4
2x - x = -1 - 4
x = -5
4x-5=2x+2
4x - 2x = 5 + 2
2x = 7
x = 7/2
3x+4=8x-21
8x - 3x = 4 + 21
5x = 25
x = 25/5
x = 5
-2x+1=7x-80
7x + 2x = 80 + 1
9x = 81
x = 81/9
x = 9
2x-3=5x+3
5x - 2x = -3 - 3
3x = -6
x = -6/3
x = -2
5x-3=3x-5
5x - 3x = -5 + 3
2x = -2
x = -2/2
x = -1
2(x+3)=4(x-1)
2x + 6 = 4x - 4
4x - 2x = 6 + 4
2x = 10
x = 10/2
x = 5
5(1-x)=3(2x+1)
5 - 5x = 6x + 3
6x + 5x = 5 - 3
11x = 2
x = 2/11
-(x-2)=2(2x+1)
-x + 2 = 4x + 2
4x + x = 2 - 2
5x = 0
x = 0
3x+1=3(2-x)
3x + 1 = 6 - 3x
3x + 3x = 6 - 1
6x = 5
x = 5/6
3(x+1)=2(3x-5)
3x + 3 = 6x - 10
6x - 3x = 10 + 3
3x = 13
x = 13/3
-(5-2x)=3x
-5 + 2x = 3x
3x - 2x = -5
x = -5
4(2x+4)-3(5-x)=2(x+1)
8x + 16 - 15 + 3x = 2x + 2
11x - 2x = 2 - 1
9x = 1
x = 1/9
2(x-2)=3x+3(2x+1)
2x - 4 = 3x + 6x + 3
9x - 2x = -4 - 3
7x = -7
x = -7/7
x = -1
-(x+2)=3(2x+1)
-x - 2 = 6x + 3
6x + x = -2 - 3
7x = -5
x = -5/7
2(x-1)-3(2x-4)=3x+5
2x - 2 - 6x + 12 = 3x + 5
-4x + 10 = 3x + 5
4x + 3x = 10 - 5
7x = 5
x = 5/7
3(2-3x)+4(x+2)=4x+2(x-2)
6 - 9x + 4x + 8 = 4x + 2x - 4
14 - 5x = 6x - 4
6x + 5x = 14 + 4
11x = 18
x = 18/11
5x+2-3(2-4x)=2(3x+4)
5x + 2 - 6 + 12x = 6x + 8
17x - 4 = 6x + 8
17x - 6x = 8 + 4
11x = 12
x = 12/11
-3(x+2)+4(5-x)=2x+5
-3x - 6 + 20 - 4x = 2x + 5
-7x + 14 = 2x + 5
2x + 7x = 14 - 5
9x = 9
x = 9/9
x = 1
3x+1=x-3
3x - x = -3 - 1
2x = -4
x = -4/2
x = -2
3-4x=10x+7
10x + 4x = 3 - 7
14x = -4
x = -4/14
x = -2/7
2(x+1)-4=4x+1
2x + 2 - 4 = 4x + 1
4x - 2x = -2 - 1
2x = -3
x = -3/2
3-2(2x+1)=5(2-x)
3 - 4x - 2 = 10 - 5x
5x - 4x = 10 - 1
x = 9
3x+2=6
3x = 6 - 2
x = 4/3
14x+1=8
14x = 8 - 1
x = 7/14
x = 1/2
10x+14=19
10x = 19 - 14
x = 5/10
x = 1/2
9x+7=28
9x = 28 - 7
x = 21/9
x = 7/3
3x+2=x+5
3x - x = 5 - 2
2x = 3
x = 3/2
4x+7=x+12
4x - x = 12 - 7
3x = 5
x = 5/3
8x+5=4x+11
8x - 4x = 11 - 5
4x = 6
x = 6/4
x = 3/2
10x+5=4x+20
10x - 4x = 20 - 5
6x = 15
x = 15/6
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