Réponse:
10x=3x-4+5
10x=3x+1
10x _3x=1
7x=1
X=1/7
i : -7x -8 = 7x + 2
i : -7x -8 + 8 = 7x + 2 + 8
i : -7x = 7x + 10
i : -7x -7x = 7x + 10 -7x
i : -14x = 10
i : -14x/-14 = 10/-14
i : (10÷2)/(-14÷2)
i : 5/-7
i : - 5/7
x = - 5/7
j : 4x + 5 = -10 - 8
j : 4x + 5 = -18
j : 4x + 5 - 5 = -18 - 5
j : 4x = - 23
j : 4x/4 = -23/4
j : x = - 23/4
K : -3 + 8 = -5x - 4
k : 5 = -5x - 4
k : 5 + 4 = -5x -4 + 4
K : 9 = -5x
k : 9/-5 = -5x/-5
K : X = - 9/5
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Réponse:
10x=3x-4+5
10x=3x+1
10x _3x=1
7x=1
X=1/7
Verified answer
i : -7x -8 = 7x + 2
i : -7x -8 + 8 = 7x + 2 + 8
i : -7x = 7x + 10
i : -7x -7x = 7x + 10 -7x
i : -14x = 10
i : -14x/-14 = 10/-14
i : (10÷2)/(-14÷2)
i : 5/-7
i : - 5/7
x = - 5/7
j : 4x + 5 = -10 - 8
j : 4x + 5 = -18
j : 4x + 5 - 5 = -18 - 5
j : 4x = - 23
j : 4x/4 = -23/4
j : x = - 23/4
K : -3 + 8 = -5x - 4
k : 5 = -5x - 4
k : 5 + 4 = -5x -4 + 4
K : 9 = -5x
k : 9/-5 = -5x/-5
K : X = - 9/5
L : -6x - 11 = -2 -3
L : -6x -11 = -5
L : -6x -11 +11 = -5 + 11
L : -6x = 6
L : -6x/-6 = 6/-6
L : x = 6/-6
x = - 1