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(Using Algebra Tiles)

100

Solve for y.

y+ 4= 2

y=-2

200

solve for a

3a=-12

a=-4

300

solve for r

r-4 =-5

r= 1

400

solve for z

6+z= 10

z=4

500

solve for b

5b=15

b=3

Two-Step Equations(Using Algebra tiles)

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

Verify

100

Verify if x=2 is the solution to this equation. Yes or No?

4x+11= 19

Yes!

200

Verify if x=7 is the solution. Yes or No?

-3y+10= -14

No! y=8

300

Verify if p=3 for this equation? Yes or no?

5-2p=11

No! p=-3

400

Verify if z=18 is the solution. Yes or no?

2/3z +1 =13

Yes!

500

Verify if x=2 is the solution. Yes or No?

3x-7 =8

No! x=5