b)10x-(1+3x)=2(3x-5)
10x -1 -3x = 5x - 107x -1 = 5x - 107x - 5x = -10 + 12x = -9x =-4.5
10x-(1+3x)=6x-10
10x-1-3x=6x-10
10x-6x=1-10
4x=-9/:4
x=2,25
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10x -1 -3x = 5x - 10
7x -1 = 5x - 10
7x - 5x = -10 + 1
2x = -9
x =-4.5
10x-(1+3x)=6x-10
10x-1-3x=6x-10
10x-6x=1-10
4x=-9/:4
x=2,25