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kalikan silang
3(x-3)=2(2x-4)
3x-9=4x-8
3x-4x=-8+9
-x=1
x=-1
2. 5-10x=45-10x=45
-10x = 45-5
-10x = 40
x= -4
selisih x dan y = 10
10+4= -14