Chapter 3 Review (Algebraic Expressions and Equations)

Factor out the coefficient of the variable -4p+10

-4(p-2.5)

Simplify (4-n) + 2(-5n+3)

10-11n

Simplify 14-3z+8+z

22-2z

Simplify (m-3) - (-m+12)

2m-15

Simplify 3(q+1)-4

3q-1

Simplify (x-2) + (3x+8)

4x+6

Simplify -2(g+4)+7g

5g-8

Factor out the GCF 24x-18

6(4x-3)

Simplify 2.5x+4.3x-5

6.8x-5

How do you solve 2-step equations?

Add/subtract first, multiply/divide second

How do you solve an equation?

Do the opposite operation of the # by the variable on both sides of the equation

How do you factor an expression?

Identify factor, divide each side of expression by factor, answer should be in format: factor(# +/- #)

When is an expression in simplest form?

No like terms and no parentheses

How do you check your solution to an equation?

Plug your answer in for the variable to see if the equation is correct

What is the reason for solving an equation?

Want to get the variable by itself

Solve -5c+9=-16

c=5

How do you distribute a # outside ( )

multiply it by both #s inside ( )

Solve 3=-1.5n

n=-2

Solve p-5=-2

p=3

Solve w+13.2=10.4

w=-2.8

Solve x/5=-2

x=-10

Solve 2x+12=4

x=-4