PreAlgebra!

"Like" These Terms

100

2m + 3 + 4m

What is 6m + 3

200

c - 3 + 4 + 2c

What is 3c + 1

300

2m + 4 - 3 - m

What is m + 1

400

5(c - 2) + 10 -c

What is 4c

500

4d-5-9d+17

-5d+12

To Add or Subtract

100

15 + c = 20

What is c = 5

200

8+d=20

d=12

300

4 + n = 11

N=7

400

x-14 = -19

What is x = -5

500

11 = n - 5

What is n=16

To Multiply or Divide

100

p/6 = -9

p=-54

200

3x = 21

x = 7

300

64 = -8z

z=-8

400

2(n + 5) = −2

n = -6

500

−9x + 1 = −80

x = 9

Definitions

100

A mathematical phrase (that combines numbers, operation signs, and sometimes variables). It does NOT have an equal sign.

An expression

200

A letter or symbol that stands for one or more numbers.

A variable

300

An algebra or numeric sentence showing two quantities are equal.

an equation

400

A positive or negative whole number (not a fraction, decimal, etc.)

An Integer 

500

refers to how many times a number multiplied by itself.

An Exponent

Distribute

100

2(c + 4)

What is 2c + 8

200

3(x-2)

3x-6

300

6(7x-5)

42x-35

400

-2(x-3y)

-2x+3y

500

-(5n-2y)

-5n+2y