7th Grade Linear Expressions

Definitions

100

An algebraic expression in which the exponent of each variable is 1.

Linear Expression

200

Method where you align like terms and then add.

Vertical 

300

Method in which you use properties of operations to group like terms and simplify.

Horizontal

400

Property in which terms are move to combine like terms.

Commutative

500

The rule that says add the opposites.

Subtraction Rule

Addition Expressions

100

(7-b)+(3b+2)

2b+9

200

(2w-9)+(-4w-5)

-2w-14

300

(6-2.7h)+(-1.3j-4)

-2.7h-1.3j+2

400

(7/4x-5)+(2y-3.5)+(-1/4x+5)

3/2x+2y-3.5

500

(2x-6)+(x+5)

3x-1

Subtraction Expressions

100

(2x+7)-(2x-4)

11

200

(-2g+7)-(g+11)

-3g-4

300

(2n-9)-(-2.4n+4)

4.4n-13

400

(-1/8c+16)-(3/8+3c)

-3 1/8c+15 5/8

500

(1-5q)-(2.5s+8)-(0.5q+6)

-5.5q-2.5s-13