Flashcard 4.1 Solving Linear Equations

Front

Solve x + 8 = 18

Back

x = 10

Front

What is the solution of 5x - 7 = 3x + 9?

Back

x = 8

Front

Solve 5x = 60

Back

x = 12

Front

Which of the changes keep the hanger in balance? Adding a circle on the left and the square on the right, Adding a triangle on the left and a square on the right, Adding two triangles to each side

Back

Adding two triangles to each side

Front

Each triangle weighs 2.5 pounds, each circle weighs 3 pounds, and x represents the weight of each square. Which equation represents the hanger? 4x + 5 + 6 = 2x + 2.5 + 6, 2x + 2.5 = 3, x = 14

Back

2x + 2.5 = 3

Front

What is a linear equation?

Back

An equation that makes a straight line when graphed, typically in the form y = mx + b.

Front

What does 'solving for x' mean?

Back

Finding the value of x that makes the equation true.

Front

What is the first step in solving the equation x + 5 = 12?

Back

Subtract 5 from both sides to isolate x.

Front

What is the solution to the equation 3x = 15?

Back

x = 5

Front

What is the principle of balancing equations?

Back

Whatever you do to one side of the equation, you must do to the other side.