exam Maths Puzzle Numerical Ability

i have a wksht ???..can you still help me?
Solve the following system of equations:
4x-y=3
2x+3y=5
i got x=-7/9
y=-29/7
i dont think what i have is right

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exam Other Question
John Roberts has $42,180.53 in a brokerage account, and he plans to contribute an additional $5,000 to the accout at the end of every year. The brokerage account has an expected an Factor completely: (a+b)^2-5(a^2-b^2)+4(a-b)^2