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Sagot :

a) 6x-10+x=3-7+2x 
=> 7x-10=-4+2x
=>5x-6=0
=> 5x = 6
=> x =6/5

b) 2/3x -3/5 = 7/6x+3/10
=> 2/3x -7/6x = 3/10 + 3/5
=> -x/2 = 9/10
=> x = (9/10)/(-1/2)
=>x = -9/5

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