One-Step Equations with Addition/Subtraction
a + 3 = 8
a = 5
m + (-12) = 20
m= 32
5a = 20
a = 4
a - 7b +c = 5
Equation
a
Variable
a + 8 = -2
a = -10
a - (-5) = 6
a = 1
a/6 = 6
a = 36
a + 2
Expression
What are the coefficient (s)?
7a + b
7 and 1
a - 5 = 4
a = 9
-19 = m + (-7)
m = -12
-42 = 7a
a = -6
4a -3c + b
Expression
-3-10 = ?
-13
- 16 = a - 11
a = -5
1 = a -(-2)
a = -1
-3 = -a/9
a = -27
7x + 2b + 3cf = 8
Equation
How many terms are in here?
3a + 4 + c = 90
4
-2 = a + 2
a = -4
c + (-9) = 27
c = 36
DOUBLE JEOPARDY:
1/4a = -8
a = -32
a - 36 + 9bc
Expression
What is the difference between an addition/subtraction model to a multiplication model?
Multiplication: this model has multiple variables
Addition/Subtraction: this only has one variable/it also has a smaller square along with it