SOLUTION: Find the numerical value of the algebraic expressions: (−3)(a+x), if a=8, x=−10

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Question 1062639: Find the numerical value of the algebraic expressions: (−3)(a+x), if a=8, x=−10
Found 2 solutions by Edwin McCravy, jim_thompson5910:
Answer by Edwin McCravy(20060)   (Show Source): You can put this solution on YOUR website!
, if a=8, x=-10

replace "a" by (8), and replace x by (-10)



Combine the 8 and the (-10) as -2
[Subtract as in basic math and use the sign
of the larger]




Now multiply the -3 by the -2



[A negative times a negative is a positive.]

Or just 



Edwin

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!




Replace every copy of 'a' with 8


Replace every copy of 'x' with -10


Now use PEMDAS to evaluate














So in the end, when a = 8 and x = -10

The final answer is 6

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