bonjour;
h) 4x+3=0
4x= -3
x = -3/4 = -0,75
i) 7x-5=8
7x = 8+5
7x = 13
x = 13/7
j) 8x+3=5x-7
8x-5x = -7-3
3x = -10
x = -10/3
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bonjour;
h) 4x+3=0
4x= -3
x = -3/4 = -0,75
i) 7x-5=8
7x = 8+5
7x = 13
x = 13/7
j) 8x+3=5x-7
8x-5x = -7-3
3x = -10
x = -10/3