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kedua ruas kalikan dg 15, diperoleh:
6(1-2x)-5(2-x)>=10
6-12x-10+x>=10
-11x-4>=10
-11x>=14
x<=-14/11
⇔2/5-4/5x-2/3+1/3x ≥ 2/3
⇔-4/5x+1/3x+2/5-2/3 ≥ 2/3
⇔-7/15x-4/15 ≥ 2/3
⇔15(-7/15x-4/15) ≥ 15(2/3)
⇔-7x-4 ≥ 10
⇔-7x ≥ 10+4
⇔ -7x ≤ 14
⇔ x ≤ 14/-7
⇔ x ≤ -2
Jadi x= {-3,-4,-5,..,..}