Réponse:
2x+3=2x+5
4x=3+5=8
x=8/4=2
1/4x-3/8=2/3
1/4x=2/3+3/8
1/4x=2×8/3×8+3×3/8×3
1/4x=16/24+9/24
1/4x=25/24
x=(25/24)×4=25/6
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Réponse:
2x+3=2x+5
4x=3+5=8
x=8/4=2
1/4x-3/8=2/3
1/4x=2/3+3/8
1/4x=2×8/3×8+3×3/8×3
1/4x=16/24+9/24
1/4x=25/24
x=(25/24)×4=25/6