15 (x-9)--2 (x-12)+5 (x+6)=0
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Answer:
×=129/-4
Step-by-step explanation:
15(×-9)-(-2)(×-12)+5(×+6)=0
15×-135+2×-24+5×+30=0
-4×-129=0
-4×=129
×=129/-4
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