4.3.3 Simplifying with Zero

 $-2x+5+3x-4x+\left(-1\right)+\left(-1x\right)$  

Combine like terms to simplify the expression. Use algebra tiles if you need them. 

•  $10x+6$  

•  $-4x+4$  

•  $-4x+6$  

•  $0x$  

•  $10x+4$  

 $6+4x+4-4x$  

Combine like terms to simplify the expression. Use algebra tiles if you need them. (2 possible answers)

•  $10$  

•  $8x+10$  

•  $0x+10$  

•  $8x-2$  

 $3\left(x+2\right)$  

Combine like terms to simplify the expression. Use algebra tiles if you need them. 

•  $3x+2$  
  

•  $x+2$  

•  $3x+6$  

•  $9x$  

 $5+7x^2+4x$  

Combine like terms to simplify the expression. Use algebra tiles if you need them. 

•  $Cannot\ be\ combined.$  
  

•  $16x^2$  

•  $11x+5$  

 $4x^2-2x+9-6x+3$  

Combine like terms to simplify the expression. Use algebra tiles if you need them. 

•  $-4x^2+9$  
  

•  $-4x^2+12$  

•  $4x^2+8x\ -6$  

•  $4x^2-8x+12$  

Solve. NO CALCULATORS!

 $\frac{19}{20}-\frac{1}{4}$  

Solve. NO CALCULATORS!

 $\frac{22}{25}-\frac{7}{10}$  

Solve. NO CALCULATORS!

 $\frac{9}{32}+\frac{7}{8}$  

 $2a-7\ when\ a\ =\ 3$  Substitute and solve. 

NO CALCULATOR!

 $10\ +4m\ when\ m\ =\ -2$  Substitute and solve. 

NO CALCULATOR!