find value of a
216multiply by 6 raise to power 2a is equal to 6 raise to power 7
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216 can be written as 6³. and 6³*6²=6 to the power 5
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216 * 6^2a = 6^7
6*6*6 * 6^2a = 6^7
6^3 * 6^2a = 6^7
3+2a = 7
2a = 7-3
2a = 4
a = 4/2
a = 2
6*6*6 * 6^2a = 6^7
6^3 * 6^2a = 6^7
3+2a = 7
2a = 7-3
2a = 4
a = 4/2
a = 2
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