# Algebra 1 terms and Practice Problems; Chapter 1 Lesson 1

### 18 terms by Magee

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How to learn Algebra 1.

### variable

A letter that stands for a number. 1-1

### algebraic expression

An expression that contains at least one variable. 1-1

### substituting

The act of replacing a variable with another number. 1-1

### evaluate

To substititute numbers for all variables, and then to calculate. 1-1

### natural numbers

Counting numbers; 1, 2, 3... 1-1

### whole numbers

Natural numbers ( counting numbers) and zero; 0, 1, 2, 3... 1-1

### rational numbers

Natural numbers, whole numbers, negative numbers, and fractions are included in this tpye of number 1-1

### grouping symbols

Paranathesis group numbers, which means they would be called this. 1-1

### 13

EVALUATE 1-1: x+6 for x=7.

### 10

EVALUATE 1-1: 1+y for y=9

### 10

EVALUATE 1-1: m-2 for m=12

### 48

EVALUATE 1-1: 4h for h=12

### 6

EVALUATE 1-1: p/5 for p=30

### -30

EVALUATE 1-1: 5g for g= -6

### 1/6

EVALUATE 1-1: y/12 for y=2

### -15

EVALUATE 1-1: y-10 for y = -5

### 3

EVALUATE 1-1: 10x+2 for x =1/10

### 1

EVALUATE 1-1: 12/x for x=12

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