SOLUTION: How do I evaluate the expressions given x=6 and y=4 for 5(2x-3y)-5(4x-3y)and for 5-4(3.2x+2y)+3/4(6x+4y)

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Question 989791: How do I evaluate the expressions given x=6 and y=4 for 5(2x-3y)-5(4x-3y)and for 5-4(3.2x+2y)+3/4(6x+4y)
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
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You should collect the like terms first.

When you get the simple (the simpler, the simplest) expression, substitute the values and calculate.

It reduces unnecessary calculations.