Question

10-|4x+5y|+|y|, при x =5,y=-4

Answer 1

10-|4x+5y|+|y|, при x = 5, y = -4.

10-|4*5+5*(-4)|+|-4| = 10-|4*5-5*4|+4 =

= 10-|0|+4 = 10-0+4 = 14.

Answer 2

To find the value of the expression 10-|4x+5y|+|y| when x = 5 and y = -4, simply plug in the given values into the expression:

1. First, evaluate |4x + 5y|: |4(5) + 5(-4)| = |20 - 20| = |0| = 0

2. Next, evaluate |y|: |(-4)| = 4

3. Finally, substitute the results into the expression: 10 - |0| + |4|

Since the absolute value of 0 is 0, the expression becomes: 10 - 0 + 4 = 14

So, when x = 5 and y = -4, the value of the expression is 14.