Math 8 Variables on both sides

Front

What is a variable in an equation?

Back

A symbol, often a letter, that represents an unknown value in an equation.

Front

What does it mean to solve an equation?

Back

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

Front

What is the first step in solving an equation with variables on both sides?

Back

Isolate the variable by moving all terms involving the variable to one side of the equation.

Front

How do you combine like terms in an equation?

Back

Add or subtract coefficients of the same variable to simplify the equation.

Front

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

Back

To undo operations and isolate the variable.

Front

What does it mean to check your solution in an equation?

Back

To substitute the solution back into the original equation to verify it holds true.

Front

Solve for x: 19 - x = 30 - 2x

Back

x = -11

Front

Solve for x: 6(x + 3) = 2(x + 2)

Back

x = -3.5

Front

Solve for m: -8m - 11 = 4m + 37

Back

m = -4

Front

Solve for x: -2x - 5 = 3x + 16

Back

x = -4.2