Pre-Algebra Unit 4 Review

Front

What does it mean when an equation has 'no solution'?

Back

An equation has 'no solution' when there are no values for the variable that can satisfy the equation. This often occurs when simplifying leads to a false statement, such as 0 = 5.

Front

Solve the equation: 2x + 1 = 2x - 1

Back

No Solution

Front

Which equation will end in 'no solution'? 2w - 11 = 3w + 5 or w + 7 + w = 2w - 9?

Back

w + 7 + w = 2w - 9

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions, showing that one is greater than, less than, or not equal to the other.

Front

Write the inequality that represents Johnny's earnings: He earns $15 per hour and wants to earn at least $105.

Back

15h ≥ 105

Front

Back

r = 67

Front

What does the symbol '>' mean in an inequality?

Back

'>' means 'greater than'. It indicates that the value on the left is larger than the value on the right.

Front

Solve the inequality: -3 − 6(4x + 6) > -111

Back

x < 3

Front

What is the solution set for the inequality 15h ≥ 105?

Back

h ≥ 7.

Front

What does it mean when an equation has 'infinitely many solutions'?

Back

An equation has 'infinitely many solutions' when any value for the variable satisfies the equation, often resulting from equivalent expressions.