exam Maths Puzzle Numerical Ability

Solve for x:
2logbase4(2x)-logbase4(3x-5)=logbase3 (9)???

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exam Other Question

Hi,
Can you help me with this math problem?Thanks.

Matrices
5. Solve the system of equations corresponding to the given matrix equation.

[5x+y] = [-38]
x+5y -4 there is an error in this problem... can you tell me where it is?? =
x=2
x(x-1) = 2(x-1)
x^2-x = 2x-2
x^2-2x = x-2
x(x-2) = x-2
x=1

Thanks for you help.... jj