Adding and subtracting Equations

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing one or more variables.

Tags

CCSS.6.EE.A.2C

Front

What does it mean to isolate a variable in an equation?

Back

To isolate a variable means to manipulate the equation so that the variable is on one side of the equation by itself, making it easier to solve.

Tags

CCSS.7.EE.B.4A

Front

Solve for x: 3 + x = 7

Back

x = 4

Tags

CCSS.6.EE.B.7

Front

Solve for y: y - 10 = 15

Back

y = 25

Tags

CCSS.6.EE.B.7

Front

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

Back

Subtract 5 from both sides to isolate x.

Tags

CCSS.6.EE.B.7

Front

Solve for x: x - 8 = 2

Back

x = 10

Tags

CCSS.6.EE.B.7

Front

What is the solution to the equation 2x = 10?

Back

x = 5

Tags

CCSS.6.EE.B.7

Front

Solve for y: 4y + 8 = 24

Back

y = 4

Tags

CCSS.7.EE.B.4A

Front

What is the purpose of using inverse operations in solving equations?

Back

Inverse operations are used to undo operations in order to isolate the variable.

Tags

CCSS.6.EE.B.7

Front

Solve for x: 5x - 15 = 0

Back

x = 3

Tags

CCSS.6.EE.B.7