Steps for Solving Equations

What is the third step in solving a balanced equation?

• remove the parenthesis

• multiply on both sides of the equation

• divide on both sides of the equation

• add or subtract on both sides of the equation

What is the last step is solving a balanced equation?

• add or subtract on both sides of the equation

• multiply or divide on both sides of the equation

• remove parenthesis

• change all subtraction to addition

(round to nearest whole #): -2(3x + 5) - 9=7x + 3x(4 - 4x) + 27

• 14

• 24

• 4

• 44

What is the first step to solve a balanced equation?

• Multiply on each side

• Divide on each side

• Remove the parenthesis

• Change to addition

In the equation x + 7 = 12 7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation?

• Subtract 7 from both sides. The solution is x = 5.

• Multiply both sides by 7 The solution is x = 84.

• Add 7 to both sides.

  The solution is x = 19.

How do you undo a number on the same side of the equation as a variable to isolate it (get it alone).

• Subtract it from that side of the equation.

• Always add it to the other side

• Use the inverse (opposite) operation on BOTH sides of the equations

What would be the best first step to solving the equation?

70 = x + 5

• subtract 5 from both sides

• add 5 to both sides

• subtract -5 from both sides

• add 70 to both sides

What would be the best first step to solving the equation?

15 = m - 5

• subtract 5 from both sides

• subtract 15 from both sides

• add 5 to both sides

• add 15 to both sides

How would you solve this equation: 9x = 153?

• subtract 9 to both sides

• add 9 to both sides

• multiply 9 by both sides

• divide 9 by both sides

• Multiply 12 by both sides.

• Divide both sides by 12.

• Multiply 17 by both sides.

• Divide both sides by 17.