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Question

Solve the following equations:
8x53x7=3x7x5.

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Solution

8x53x7=3x7x5

8(x5)x5=(3x7)3x7

Squaring both sides
64(x5)3=(3x7)3

43(x5)3=(3x7)3

Taking cube root on both sides, we get
4(x5)=3x7

4x20=3x7

4x3x=7+20

x=13

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