Bonjour,
4x= 3x+2
4x-3x= 2
x= 2
4*2 = 3*2+2
8 = 6+2 = 8
5x = 3+4x
5x-4x = 3
x= 3
5*3 = 3+4*3
15 = 3+12 = 15
2x= 7-3x
2x+3x= 7
5x= 7
x= 7/5 =1,4
2*1,4 = 7 - 3*1,4
2,8 = 7 - 4,2
2,8 = 2,8
-6x = -7x +4
-6x +7x = 4
x = 4
-6*4 = -(7*4) +4
-24 = -28 +4 = -24
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Bonjour,
4x= 3x+2
4x-3x= 2
x= 2
4*2 = 3*2+2
8 = 6+2 = 8
5x = 3+4x
5x-4x = 3
x= 3
5*3 = 3+4*3
15 = 3+12 = 15
2x= 7-3x
2x+3x= 7
5x= 7
x= 7/5 =1,4
2*1,4 = 7 - 3*1,4
2,8 = 7 - 4,2
2,8 = 2,8
-6x = -7x +4
-6x +7x = 4
x = 4
-6*4 = -(7*4) +4
-24 = -28 +4 = -24