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5x= 5+10
x=3
b. 2x-2-3x+8=5
-x+6=5
x=1
c. -2x+2+3x-8=5
x=5+6
x=11. (tidak memenuhi)
d. -2x+2-3x+8=5
-5x=5-10
x=1
jadi hp={1,3}