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1x-3=5
1x=8
b) 5x +2 = 7 - 3x
8x+2=7
8x=5
x=0,625
c) 3(x - 1) = 0
3x-3=0
3x=3
x=3
d) -6(x+1) = 24
-6x-6=24
-6x=30
x=5
e) -7(x - 2) = 3x - 1
-7x+14=3x-1
-7x+15=3x
10x=15
x=1,5
f) 4(x - 1) = 6(1 + x)
4x-4=6+6x
4x=10+6x
2x=10
x=5