Introduction to Algebra Review

Simplify the expression: 3x + 2x

• 5x

• x

• 6x

• 5

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

2(3 + a) 

• 6 + 2a

• 5 + a 

• 5 + 2a 

• 6 + a

3(b + c)

• 3b + 3c

• 3b + c 

• 3 + 3c 

• b + c 

7x +9y+4x

• 20xy

• 11x+9y

• 11x+9xy

• 13xy

-2k+3k-(-5k)+6k

• 3k

• -4

• 13

• -13

K-I+K+I

• -2I

• 2K-2I

• 2K

• 0

What is the missing number?___ − 2 = 4

• 5

• 4

• 2

• 6

Which equation is equivalent to :"The sum of three and five is equal to eight"

• 3+5=x

• 3+4=7

• 3+5=8

• 3+6=9

Which is the equivalent equation of :

"The product of six and seven is equal to forty-two"

• 6x7=54

• 6x7=42

• 6x-7=-42

• 6x7=-42