Pourriez vous m'aider à résoudre ces 2 équations merci
13/2t-3(3/2+t) = 1/4t
5(2/3x-2)-6(2/5x-1) = -5(1-1/5x)
13/2t-3(3/2+t) = 1/4t
5(2/3x-2)-6(2/5x-1) = -5(1-1/5x)
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1)
13/2t-3(3/2+t)=1/4t
=13/2t-9/2-3t=1/4t
=13/2-9/2-3t=1/4t
=26t-18-12t=t
=14t-18=t
=14-t=18
13t-t=18
t=18/13
2)
5(2/3x-2)-6(2/5x-1)= -5(1-1/5x)
=14/15x-4=-5+x
=14x-60=-75+15x
=14x-15x=-75+6
= - x=-15
x=15