Retro Flashcardizz # 12 - Pre-Algebra Math 8

Front

Solve for x: 2x - 3 + 4x = 27

Back

x = 5

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

Solve for x: x - 3 + 5x = 27

Back

x = 5

Front

Solve the equation: −3(4x + 3) + 4(6x + 1) = 43

Back

x = 4

Front

If m∠1 = 30°, then m∠3 = ?

Back

m∠3 = 30°.

Front

What is the definition of a variable in algebra?

Back

A symbol used to represent an unknown value.

Front

What is the distributive property?

Back

a(b + c) = ab + ac.

Front

What is the sum of angles in a triangle?

Back

180°.

Front

What is an equation?

Back

A mathematical statement that asserts the equality of two expressions.

Front

What does it mean to solve an equation?

Back

To find the value of the variable that makes the equation true.