0. Review of Algebra

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

In Exercises 1–16, evaluate each algebraic expression for the given value or values of the variable(s). x²-6x+3, for x=7

In Exercises 85–96, simplify each algebraic expression. 5(3y−2)−(7y+2)

Evaluate the algebraic expression when $x=4$ and $y=-5$.

$2y-x\(\left\)(3+y\(\right\))$

In Exercises 1–16, evaluate each algebraic expression for the given value or values of the variable(s). 6x-y, for x=3 and y=8

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

Evaluate the algebraic expression when $x=-3$ and $y=2$.

$x\(\left\)(20-15y\(\right\))-\(\left\)|2x+y\(\right\)|$

In Exercises 1–16, evaluate each algebraic expression for the given value or values of the variable(s). x^2+3x, for x=8

In Exercises 1–16, evaluate each algebraic expression for the given value or values of the variable(s). x²-3(x-y), for x=8 and y=2

In Exercises 85–96, simplify each algebraic expression. 18x^2+4−[6(x^2−2)+5]

Simplify

$-13+4x+x\(\left\)(9-x\(\right\))$

Answer each question. If the lengths of the sides of a cube are tripled, by what factor will the volume change?

Add or subtract, as indicated. 3/(a - 2) - 1/(2 - a)

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

Add or subtract as indicated. [(2x-7)/(x^2-9)]-[(x-10)/(x^2-9)]