calculer les équations 4/7x=8 5/3x=3 -3+5x=12 4-3x=8

4/7x = 8
4=56x
4/56 = x

5/3x = 3
5=9x
5/9 = x

-3 + 5x = 12
5x = 12 + 3
5x = 15
x = 15/5
x = 3

4-3x = 8
-3x = 8 - 4
x = 4/-3


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Voila  !
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bonsoir

4/7x=8
4x/7 = 56/7
4x = 56
x = 14

5/3x=3
5x/3 = 9
5x = 9
x = 9/5

-3+5x=12
5x = 12 +3
5x = 15
x = 3

4-3x=8
-3x = 8 -4
-3x = 4
x = -4/3