Question

Find the value of each variable in the equation (y + x) - 2x(y - 2) when: x = 15; y = 45 , x = 25; y = 75 , x = 30; y = 90 , x = 40; y = 120

What is the result of the expression (y + x) - 2x(y - 2) for each of these sets of values?
A) -30
B) 0
C) 30
D) 60

Answer 1

The value of the expression (y + x) - 2x(y - 2) for each set of values is 60, 0, 30, and 60.

Step-by-step explanation:

To find the value of the expression (y + x) - 2x(y - 2), we substitute the given values of x and y and simplify the expression.

For x = 15 and y = 45, the expression evaluates to (45 + 15) - 2(15)(45 - 2) = 60.

For x = 25 and y = 75, the expression evaluates to (75 + 25) - 2(25)(75 - 2) = 0.

For x = 30 and y = 90, the expression evaluates to (90 + 30) - 2(30)(90 - 2) = 30.

For x = 40 and y = 120, the expression evaluates to (120 + 40) - 2(40)(120 - 2) = 60.