SOLUTION: Evaluate the following algebraic expressions for given value of the variables. 3-5x; x=-4 (3x-2)(y-1);x=2/3,y=1

Algebra ->  Expressions -> SOLUTION: Evaluate the following algebraic expressions for given value of the variables. 3-5x; x=-4 (3x-2)(y-1);x=2/3,y=1       Log On


   

Question 903825: Evaluate the following algebraic expressions for given value of the variables.
3-5x; x=-4

(3x-2)(y-1);x=2/3,y=1
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
# 1

3-5x

3-5(-4) ... replace every x with -4

3 + 20

23

So 3-5x = 23 when x = -4

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# 2

(3x-2)(y-1)

(3(2/3)-2)(y-1) ... replace every x with 2/3

(3(2/3)-2)(1-1) ... replace every y with 1

(2-2)(1-1)

0*0

0


That means (3x-2)(y-1) = 0 when x = 2/3 and y = 1