Model and Solve One Step Equations and Inequalities

Greg wrote in his math journal that 17 - x = 9 is an example of an algebraic equation. Which statement is true about the example Greg wrote in his math journal?

• Greg's example is an equation because there is a variable present.

• Greg's example is an equation because x can represent any value.

• Greg's example is an equation because it is a number sentence stating two amounts are equivalent.

• Greg's example is an equation because there are two numbers present.

When graphing an inequality, you use a closed circle when you use which symbols?

• ≤, ≥

• <, >

What equation is modeled? Solve the equation.

What equation is modeled? Solve the equation.

Solve for x:

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

• Add 7 to both sides.

  The solution is x = 19.

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

Write the inequality graphed on the number line.

Write the inequality graphed on the number line.

The model represents an equation.

What value of x makes the equation true?

• 3

• 8

• 6

• 4

Identify the steps to solve for b

• Add 6 to both sides and divide both sides by 5

• Add 6 to both sides and multiply both sides by 5

• Subtract 6 from both sides then multiply both sides by 5

• Subtract 6 from both sides then divide both sides by 5