0. Review of Algebra

Simplify each expression. (3/4r)(-12)

Simplify each expression. 8+(a+7)

Simplify each expression. $-\frac{1}{4}(20m + 8y - 32z)$

Rewrite each expression using the distributive property and simplify, if possible. 15x-10x

Evaluate each expression for x = -4 and y = 2. |3x - 2y|

Evaluate each expression for $x=-4$ and $y=2$.

$\mid 2x-5y\mid$

Evaluate each expression for x = -4 and y = 2. |-3x + 4y|

Evaluate each expression for $x=-4$ and $y=2$.

$\mid -5y+x\mid$

Evaluate each expression for x = -4 and y = 2. 2|y| - 3|x| / |xy|

Evaluate each expression for x = -4 and y = 2. 4|x| + 4|y| / |x|

Evaluate each expression for x = -4 and y = 2. |-8y + x| / -|x|

Add or subtract, as indicated. 3/2k + 5/3k

Add or subtract, as indicated. 1/6m + 2/5m + 4/m

Add or subtract, as indicated. 1/a + b/a²

Add or subtract, as indicated. 5/12x²y - 11/6xy