Question

5x-3(y+2)при x= -2, y= -4

Answer 1

5*(-2)-3*(-4)-6=-10-(-12)-6=-10+12-6=-4

Answer 2

To evaluate the expression 5x - 3(y + 2) when x = -2 and y = -4, simply substitute these values into the expression and perform the calculations:

5x - 3(y + 2) = 5(-2) - 3(-4 + 2)

Now, follow the order of operations (PEMDAS - Parentheses, Exponents, Multiplication and Division, Addition and Subtraction):

5(-2) = -10 -3(-4 + 2) = -3(-2) = 6

Now, combine the results:

5x - 3(y + 2) = -10 - 6 = -16

So, when x = -2 and y = -4, the expression 5x - 3(y + 2) equals -16.