5(2x-1)=15...=10x-5=15....=10x=15+5.....=10x=20....=. x=20/10. x=2
3(4x-3)-60x=39......=12x-9-60x=39..........=-48x-9=39....=-48x=39+9.....=-48x=48.....
x=48/-48. x=-1
10(4x+7)=90...=40x+70=90...=40x=90-70....40x=20.....x=20/40. x=0.5
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5(2x-1)=15...=10x-5=15....=10x=15+5.....=10x=20....=. x=20/10. x=2
3(4x-3)-60x=39......=12x-9-60x=39..........=-48x-9=39....=-48x=39+9.....=-48x=48.....
x=48/-48. x=-1
10(4x+7)=90...=40x+70=90...=40x=90-70....40x=20.....x=20/40. x=0.5