exam Maths Puzzle Numerical Ability

y=123.52x+89.32
y=-89.22x+33.76

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exam Other Question

Please help me solve 9x square/8y square divided by 3x/16y to the 9th power.
The answer is 6x to the 4th y to the 7th. I got 6xy to the seventh. May you please help me solve this equation

1/2+(2x-1/2)+3/4(x+5)=7/8