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There is something missing in "... half the sum of [???] and y decreased ...".
A number y decreased by 1 is equivalent to which of the following expressions? y - 1 y = 1 y + 1
(x + y)/2 ------------
1/2 (x+y)
Twice the sum of 'x' and 'y' . . . 2(x+y) The sum of twice 'x' and 'y' . . . (2x+y)
The expression is: 2y -20
The sum of x and y decreased by their product is (x + y)- xy.
5(x^2 + y)
6x - (6 + y)
A number y decreased by 1 is equivalent to which of the following expressions? y - 1 y = 1 y + 1
(x + y)/2 ------------
1/2 (x+y)
Twice the sum of 'x' and 'y' . . . 2(x+y) The sum of twice 'x' and 'y' . . . (2x+y)
y-8
2(x+y) is twice the sum of x and y, and 2x+y is the sum of twice x and y
8+y is the sum of 8 and y
y-6
17 - y