Question

3|x|-|5+y| если x=-3 y=-73|x|-|5+y|= если x=4,y=-20​

Answer 1

Ответ:

3•3-5+7=9-12= -3

3•4-5+20=12-25= -13

Answer 2

To evaluate the expressions, let's substitute the given values of x and y into each expression:

For the expression 3|x| - |5+y| when x = -3 and y = -7: 3|(-3)| - |5+(-7)|

Since the absolute value of -3 is 3 and the absolute value of -2 is 2: 3 * 3 - 2

Multiplying 3 by 3 gives 9: 9 - 2

Finally, subtracting 2 from 9 gives the result: 7

Therefore, 3|x| - |5+y| = 7 when x = -3 and y = -7.

For the expression |x| - |5+y| when x = 4 and y = -20: |4| - |5+(-20)|

Since the absolute value of 4 is 4 and the absolute value of -15 is 15: 4 - 15

Subtracting 15 from 4 gives the result: -11

Therefore, |x| - |5+y| = -11 when x = 4 and y = -20.