Algebra 1 - 1 Step Equation

x + 5 = 12

x = the variable     5 = constant      12 = the answer

EQUATIONS HAVE AN EQUAL

2x - 5 = 11

2 = The coefficient. It's any number before the variable.
x = the variable   - = the constant   11 = the answer

x + 5 = 12
Step 1: Isolate the variable
Step 2 : Cancel using the opposite
Step 3: Balance the equation
Step 4: Simplify
Step 5: Verify

x + 5 - 5 = 12 - 5

x = 7
Let x = 7
x + 5 = 12
7 + 5 = 12
12 =  12
x - 7 = 3

Step 1: Isolate the variable
Step 2 : Cancel using the opposite
Step 3: Balance the equation
Step 4: Simplify
Step 5: Verify

x - 7 + 7 = 3 + 7

x = 10
Let x = 10
x - 7 = 3
10 - 7 = 3
3 = 3
3x = 15
Step 1: Isolate the variable
Step 2 : Cancel using the opposite
Step 3: Balance the equation
Step 4: Simplify
Step 5: Verify

3 divide by 3 and 15 divide by 3

x = 5

Let x = 5
3x = 15
3 (5) = 15
15 = 15
x divide by 2 = 4

Step 1: Isolate the variable
Step 2 : Cancel using the opposite
Step 3: Balance the equation
Step 4: Simplify
Step 5: Verify

2x divide by 2 = 4 divide by 2

x = 2
Let x = 8
x divide by 2 = 4
8 divide by 2 = 4
4 = 4