Solving One-Step Equations
y + 2 = 7
y= 5
m + 3 = 10
m = 7
4x + 5 = 13
x = 2
2x + 1 = 11
x = 5
What is the inverse operation of subtraction?
Addition
m - 6 = 10
m = 16
n - 5 = 20
n = 25
2x + 3 = 15
x = 6
3x + 2 = 14
x = 4
What is the inverse operation of Division?
Multiplication
9 + n = 13
n = 4
3n = 15
n = 5
6x + 3 = 33
x = 5
4f - 2 = 14
f = 4
What is a coefficient?
The number in front of a variable
4x = 20
x = 5
5x = 30
x = 6
x/4-2=3
x = 20
x/5-1=2
x = 15
When solving an equation, do you remove the constant or the coefficient first?
The Constant
v/5=3
v = 15
h/2=6
h = 12
-2/5x-1=9
x = -25
3/5x-4=8
x = 20
What does "isolate the variable" mean?
Get the variable by itself on one side of the equal sign