Question

An expression is given.

-2y + 32 x + 74

Which are equivalent to the given expression?


-1xy + 74

32x - 2(y + 72)

-14y + 32(y +x)

-2y + 12 (3x + 72)

14(-8y + 6x + 7)

Answer 1

None of those

Explanation:

`a) -1xy + 74 \\eq -2y + 32 x + 74\\\\ b) 32x - 2(y + 72) = 32x -2y -144\\32x -2y -144 \\eq -2y + 32 x + 74\\ \\ c) -14y + 32(y +x) = -14y + 32y+32x \\ -14y + 32y+32x\\eq-2y + 32 x + 74\\ \\d) -2y + 12 (3x + 72)  = -2y + 36x+864\\-2y + 36x+864\\eq -2y + 32 x + 74\\ \\e) 14(-8y + 6x + 7) = -112y +84x+98\\  -112y +84x+98 \\eq -2y + 32 x + 74`