Introduction to Algebra

Simplify 2x + 1 + 7x

• 10x

• 10

• 9x + 1

• 9 + 1x

Simplify 3x + 2x

• 5x

• x

• 6x

• 5

Simplify 5a + 2b - 3a + 4

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

Simplify 7x +9y+4x

• 20xy

• 11x+9y

• 11x+9xy

• 13xy

Simplify 11+5x+x

• 11-6x

• 17x

• 11+6x

• 6x

Simplify n -10 +9n -3=

• -3

• 9n-3

• n

• 10n -13

Simplify 5a + 2b - 3a + 4

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

Simplify 

 $14a-2+3b-4a+2b+5$  

•  $18a-b+7$  

•  $-10a-5b-7$  

•   $10a+5b+3$  

•  $-18a-5b-3$  
  

Which one the followings is/are algebraic expressions?

•  $3+x=8$  

•  $abc$  

•  $b^2$  

•  $\frac{\alpha\beta}{\pi}$  

•  $a+bc=d$  

Which of the following pair(s) is/are like terms?