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5x+3x=7-2
8x=5 / : 8
x = 5/8
b)-7(x-2)=3x-1
-7x+14=3x-1
-10x = - 15 / : ( -10 )
x = 1,5
c)4(x-1)=6(1+x)
4x-4 = 6+6x
-2x = 10 / : ( -2 )
x = -5
e)x/4-1/4=2 /* 4
x-1=8
x=9