Equations
Solve the equation:
2g + 10 = 44
g=17
a mathematical sentence that combines numbers, variables, and operation signs; for example, 2x + 5
Algebraic Expression
Simplify the expression:
2g + 10 + g + 5
3g + 15
Using Inverse Operations solve for the variable:
n + 17 = 35
n=18
Solve:
4 x 9
36
Solve the equation:
2m + 8 = 20
m=6
a letter that stands for an unknown value; for example, x, m, n
Variable
Simplify the expression:
5a + 1 + 3a + 5
8a + 6
Using Inverse Operations solve for the variable:
x + 14 = 40
x=26
Solve:
6 x 8
48
Solve the equation:
2m + 9 = 45
m=18
a combination of numbers, variables, and operation signs; does not contain an equal sign; for example, 2x + 5
Expression
Simplify the expression:
g + 6 + g + 1 + 4g
6g + 7
Using Inverse Operations solve for the variable:
x + 25 = 125
x=100
Solve:
10 x 5
50
Solve the equation:
2a + 7 = 151
a=72
to “plug in” a number for a variable to find the value of an expression or equation
Substitute
Simplify the expression:
8m + 2 + m + 10 + m
10m + 12
Using Inverse Operations solve for the variable:
12 + x = 35
x=23
Solve:
12 x 6
72
Solve the equation:
2m + 3 = 29
m=13
to “undo” an operation by doing the opposite; addition and subtraction are opposites, and multiplication and division are opposites
Inverse Operation
Simplify the expression:
2g + 5 + g + 6 + 3g
6g + 11
Using Inverse Operations solve for the variable:
a + 15 = 40
a=25
Solve:
12 x 12
144