7th/ 8th 1 & 2 Step Equations

Algebraic Expressions

100

Write the algebraic expression.

Four more than the price, p

p+4 

200

Five less than three times the length, L

3L-5

300

Write a word form of the expression

100-5n

one hundred minus five times the number of cars

400

Write the algebraic expression.

Fifty decreased by two tenths of m

50-0.2m

500

Write a word expression

5+ 2n

5 increased by 2 times a number, n

One-Step Equations

100

Solve for y.

y+ 0.4= 2

y=2.4

200

12= solve for a

0.5a

a=24

300

solve for r

r/4 = 250

r= 1,000

400

solve for z

15.5z= -77.5

-5

500

solve for b

4.5b=27

b=6

Two-Step Equations

100

solve for m

3m+5=8

m=1

200

solve for x

-2x-3=5

x=-4

300

solve for n

2n-5= 25

n=15

400

solve for t

-5t-2=28

t= -6

500

solve for p

2p+3=7

p=5

Algebra Tiles

100

Model 3t+10=16 with algebra tiles

3 large positive tiles, 10 small positive tiles, 16 small positive tiles

200

Model -q -3 = 7 with algebra tiles

1 large negative 1 tiles, 3 small negative tiles, 7 small positive tiles

300

Model 3d +5 =17 with algebra tiles

3 large positive tiles, 5 small positive tiles, 17 small positive tiles

400

Model 2p +3 = 7 with algebra tiles

2 large positive tiles, 3 small positive tiles, 7 small positive tiles

500

Model -5w -3 = 30

5 large negative tiles, 3 small negative tiles, and 30 small positive tiles

Solving Two Step Equations

100

solve for x

4x+11= 19

x=2

200

solve for y

-3y+10= -14

y=8

300

solve for p

5-2p=11

p=-3

400

solve for z

2/3z +1 =13

z=18

500

solve for x

3x-7 =8

x=5