exam Maths Puzzle Numerical Ability

Could you help me solve this system of equations:

3(2^x)-2^(x+y)+2=0
5(2^x+1)-2^(x+y+1)=16

i simplified it to be:

3(2^x)-2^(x)*2^(y)+2=0
5*2^(x)*2-2^(x)*2^(y)*2=16

th

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