Multi Step Equations

What is the first step to solve this equation?
x - 5 = 7 - 2x

• Add 7 to both sides of the equation

• Add 2x to both sides of the equation

• Subtract 2x from both sides of the equation

• Subtract 5 from both sides of the equation

What is the next step to solve this equation?
3x - 5 = 7

• Add 5 to both sides of the equation

• Add 3x to both sides of the equation

• Subtract 5 from both sides of the equation

• Subtract 7 from both sides of the equation

What is the first step to solve this equation?
3n - 4 = -2 + 2n 

• Add 2n to both sides of the equation

• Add 3n to both sides of the equation

• Subtract 2n from both sides of the equation

• Subtract 4 from both sides of the equation

What is the next step to solve this equation?
n - 4 = -2

• Add 4 to both sides of the equation

• Add n to both sides of the equation

• Subtract n from both sides of the equation

• Subtract 4 from both sides of the equation

-15 = 5a +12- 2a + 6

• -11
• -3
• 10
• 7

3a + 9 + 4a = 2

• -1
• 1
• no solution
• -7

Solve.

 $6a\ +\ 5a\ =\ -11$  

•  $a\ =\ 0$  

•  $a\ =\ 1$  

•  $a\ =\ -1$  

• None of these

 $r\ +\ 11\ +\ 8r\ =\ 29$  

•  $r\ =0$  

•  $r\ =\ 1$  

•  $r\ =\ 2$  

•  $r\ =\ 3$  

5x - 4 + 2x = 3

• 1
• 2
• 3
• 4

10x-8 = 2x+5+7x

• No Solution

• Infinite Solutions

• x=3

• x=13