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{{:(3x+2y=15),(2x+3y=10):} Given the system of equations above, what is the value of 5x+5y ?

Answer»


SOLUTION :Often, when the SAT asks for a sum of difference of VARIABLES, solbing by combination yields the answer very quickly. Add the equations:
`2x + 3Y =15`
` (+ 3x + 2y =10)/(5x + 5y=25)`
Grid in 25 and move on.


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