Solving Equations Voca

What do we call a letter in math that represents an unknown number?

• coefficient

• variable

• term

• expression

What is the solution of an equation?

• A number that produces a true statement when it is substituted for the variable.

• A mathematical sentence formed by placing an equal sign between two expressions.

• Two or more ratios that have the same value.

Which word matches:
"A ________ says two things are equal.  It has an equal sign"

• Equation

• Expression

• Substitution

• GEMDAS

Infinitely many solutions

• operations that undo each other

• a system of equations in which the equations have different slopes and intersect at one point

• two lines that are parallel and never intersect are said to have this

• The answer to an equation. a Ordered pair that makes an equation true.

• Any value for the variable would make the equation true.

• m=3

• m=-4

• m=-1

• All real numbers

• 1.5

• 6

• -6

• -1.5

Solve for x

• 35

• 3.5

• 0.35

• -35

Solve the equation:
x - 3 = -12

• x = 9 

• x = -15

• x = -9

• x = 15

You use the ______________ when you multiply each side of an equation by the same number.

• Addition Property

• Subtraction Property

• Multiplication Property

• Division Property

You use the ______________ when you add the same number to each side of an equation.

• Addition Property

• Subtraction Property

• Multiplication Property

• Division Property