solving equations

which could NOT be a step in solving the equation  $2x\ +\ 10\ =\ 5x\ -\ 2$  

• subtract 2x 

• add 2

• subtract 10

• add 5x

Which choice could NOT be a step in solving the following equation $15\ -\ 3x\ =\ 2x\ +\ 40$  

• add 3x

• add 15

• subtract 40

• subtract 2x

Which choice is the simplified version of the equation  $2\left(x\ -4\right)=5x\ +\ 6$  

• 2x - 8 = 5x + 6

• x - 4 = 5x + 3

• 2x - 6 = 5x + 6 

• x - 4 = 5x + 4

Which choice is the simplified version of the equation below $2x\ +\ 5\ +3x\ +\ 2\ =\ 6x\ -\ 1\$  

• x + 3 = 6x - 1

• 3x + 2 = 8x + 4

• 5x + 7 = 6x - 1

• -x - 3 = 6x - 1 

solve the equation  $2x\ +\ 1\ =\ 2x\ +\ 1$  

• infinite solutions

• no solutions

• 1 solution when x = 0

solve the equation  $6x\ +\ 3\ =\ 6x\ -\ 8\$  

• infinite solutions

• no solution

• 1 solutions when x = 0

solve the equation for x $5x\ -\ 3\ =\ 2x\ +\ 9$  

• no solution

• infinite solutions

• 1 solution when x = 4

• 1 solution when x = 2

solve the equation  $10\ -\ 2x\ =6x\ +\ 26$  

• infinite solutions

• no solution

• 1 solution when x =  6

• 1 solution when x = -2

Solve the following equation.
4x + 3 = -5

• 1/2
• -1/2
• -2
• 2

Tags

CCSS.7.EE.B.4A

What operation would you perform first and then second when solving for m in the following equation?
10 + 7m = 17

• subtract 10, divide by 7
• divide by 7, subtract 10
• multiply by 7, add 10
• add 10, multiply by 7

Tags

CCSS.HSA.REI.A.1