MT 7.3B Practical Applications: Solving Simple Equations

Front

What is a simple equation?

Back

A simple equation is a mathematical statement that asserts the equality of two expressions, typically involving one or more variables.

Front

How do you solve for a variable in a simple equation?

Back

To solve for a variable, isolate the variable on one side of the equation using inverse operations (addition, subtraction, multiplication, division).

Front

Evaluate the expression: 5m + 9n if m = -7 and n = 4.

Back

1

Front

What is the formula for the area of a triangle?

Back

Front

Find the height of a triangle with area 156 inches squared and base 12 inches.

Back

26

Front

What is the formula for the area of a rectangle?

Back

Front

Find the length of a rectangle with area 78 inches squared and width 6 inches.

Back

13

Front

Solve for w in the equation: -6w + 1 = -11.

Back

2

Front

Evaluate y = x + 5 when y = 10. What is the value of x?

Back

5

Front

What does it mean to evaluate an expression?

Back

To evaluate an expression means to calculate its value by substituting the variables with their respective values.