Answer:
800
Step-by-step explanation:
(7^5 * 7^3)^4 * 7^-2 / 7^-7 * 7^20
= (7^8)^4 * 7^-2 / 7^(-7 + 20)
= 7^32 * 7^-2 / 7^13
= 7^(32 - 2) / 7^13
= 7^30 / 7^13
= 7^(30 - 13)
= 7^17
Answer:
*3x + 10y = 240*
Step-by-step explanation:
A look at the image attached will provide more clarification
Answer:
The answer is -a
Step-by-step explanation:
from equation,

∴
Therefore, -a is equal to b
hope you have understood this....
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