GRE
a + b
a - b
0
2(a - b)
$$-\frac{x-3}{4}$$
y
x + y - 1
x - y + 1
$$5^{x}+1$$
$$6^{x}$$
|x|
$$\frac{a+b+c}{5}$$
$$\frac{1}{5ab}+\frac{c}{5}$$
$$\frac{8}{9y}$$
2
$$-\frac{w}{x}$$
$$\frac{y}{w}$$
$$\frac{1}{10}$$area of rectangle
The length of the rectangle
The greatest odd factor of x
The greatest even factor of x
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