Math 8 Semester 1 Review Part 2

Front

What are whole numbers?

Back

Whole numbers are natural numbers together with zero.

Front

Solve for x: 7x = 3x + 24

Back

x = 6

Front

Solve for y: 3y + 3 = 12

Back

y = 3

Front

Solve for w: 7w + 5 = 3w - 15

Back

w = -5

Front

What is the definition of a variable in algebra?

Back

A variable is a symbol used to represent an unknown value.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value(s) of the variable(s) that make the equation true.

Front

What is a linear equation?

Back

A linear equation is an equation that makes a straight line when graphed. It has the form y = mx + b.

Front

What is the solution to the equation 2y - 4 = 10?

Back

y = 7

Front

What is the definition of an expression in algebra?

Back

An expression is a combination of numbers, variables, and operators without an equality sign.