book Maths Puzzle Numerical Ability

i need to write y+4=-2/3(x-9) in standard form.
thanks a lot for helping me!

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book Other Question

Rosita is four years older than Ruperto. Three times Rosita's age in three years will equal 2 less than 5 times Ruperto's age in three years. How older are they now? what is the answer to 1 1/4x +1/2= 5/1