Algebra Review

Solve

100

Solve: x + 21 = 43

x = 22

200

Solve: 3x + 4 = 7

x = 1

300

Solve: (x + 3)/4 = 6

x = 21

400

Solve: 4x - 3x + 2x = 9

x = 3

500

Solve: 21 = 11x - 12

x = 3

Like Terms

100

simplify the following

2x + 5x

7x

200

simplify: 2x + 6x + 3y + 7y =

Algebra: 8x +10y

300

simplify  5x + 4y -3x -2y =

Algebra: 2x +2y

400

Simplify: 6a(b + c) - 2a(b + c)

4ab +4ac

500

simplify: 3x + 6x² + 4(2x²) 

Algebra: 3x + 14x² 

Substitution

100

substitute x = 3 to solve:   4x +2

       

Algebra:  14 

200

  substitute x = 2 to solve:   7(x + 6)

56

300

 substitute x = -2  to solve:   3x + 2

-4

400

 substitute x = 2 to solve:   2(4x + 5) + 4

30

500

 substitute x = 10 to solve:  (5x)/2 + 3

28

Simplify

100

2x * 3x

6x²

200

5 * 3y

15y

300

2*7x + 4*3y

14x + 12y

400

7x * 3x - 2x * 2x

21x² - 4x²​

   17x²

​​​

500

3x*(2x +4)

6x² + 12x

Random

100

Solve:

30 - 3 * 7

9

200

write an expression for the following:
a number multiplied by 4 then subtracted FROM 20

20 - 4x

300

Substitute a=2 and solve

a² + 3a

2² + 3*2

4 + 6

10

400

What is the word we use for the multiplier of our variable. 

ie the 2 in 2x

Coefficient

500

The short side of a rectangle is x, the long side is x+3. 

If the perimeter is 22 what are the lengths of each side?

x + x+3 + x + x+3 = 22
4x + 6 = 22
4x = 16
x=4

Short side is 4 and the long side is 7