Bonsoir,
4x+3=2x+5
4x-2x = 5 -3
2x = 2
x= 2/2
x=1
-7(x+6)=4-(x-2)
-7x -42 = 4-x+2
-42 -4 -2 = -x +7x
-48 = 6x
x = -48/6
x=-8
5x+10=-2x+24
5x+2x = 24 -10
7x = 14
x = 14/7
x= 2
5(x-1)-(2x-1)=3-x
5x -5 -2x+1 = 3-x
5x-2x +x= 3+5 -1
4x = 7
x= 7/4
-2(2x+1)=-3(x+2)
-4x -2 = -3x -6
-2+6 = -3x +4x
4 = x
x= 4
2-5x=1+6x
2-1 = 6x+5x
1 = 11x
x = 1/11
9(x-1)=11x+23
9x -9 = 11x +23
-9 -23 = 11x -9x
-32 = 2x
x = -32/2
x = - 16
Le reste n'est pas des équations