Solving Equations Simplifying Expressions

Simplify the expression by combining like terms:
 $-7x+9+5x-3$  

•  $12x+12$  

•  $-2x+6$  

•  $-2x-12$  

•  $12x+6$  

Solve for a:

 $7+3\left(-2x+4\right)=-5$  

•  $\frac{8}{3}$  

• 4

•  $-4$  

• 4.5

Solve for x:

 $3x-6=10-x$  

• 2

• 1

• 4

•  $-4$  

Simplify: 6y + 7 - 3y + 3

• 9y + 10

• 3y + 4

• 3y + 10

• 9y + 4

Simplify: 4(5x + 2) - 6

• 20x - 4

• 28x - 6

• 9x

• 20x + 2

Solve for m : 3m + 9 = 21

• m = 4

• m = -4

• m = 10

• m = -10