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Question

4x+4x+4x+4x+4x+4x+4x+4x=1512 what is the value of 3x ?


Solution

4x+4x+4x+4x+4x+4x+4x+4x=1512
8×4x=129
2×4×4x=29
4x+1=210
4x+1=45
x + 1 =-5
x =-6
3x=36=12

All India Test Series

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