Please help me with this question :)​

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

8.74 rounded to the nearest whole number

Given: lkm jkm, clmk prove: alkmajkm jmk. choose the word that completes the sentence correctly. proof: lkm jkm and lmk * umk are given. km km by the property of congruence. equivalence symmetric reflexive transitive