Basic Algebra
It is usually a number accompanied by a variable.
Coefficient
Is 4x + 5y/3 an expression?
Yes, it is an expression.
Evaluate 7x + 2 when x = 5.
37
Solve x + 6 = -10
x = -16
Constants do not have a variable. True or False?
True
In the algebraic expression, 3a - 5b + 2, give the coefficients.
3 and -5
Evaluate (p - 3)2 when p = 5.
4
Solve 2x - 3 = 6
Variables are represented by what?
Letters and symbols
How many terms in the following algebraic expression 7 + 4r - 2s + 3t?
4 terms
Evaluate 14m when m = 4/7.
8
Solve 5x + 4 = 2x - 5
x = -3
It is a combination of terms by the operations such as addition, subtraction, multiplication, division, etc.
Algebraic Expression
What is a term?
It is constant, variable or product of two separated by plus or minus.
Evaluate 3a2 + 2b when a = -4 and b = 6.
60
Solve (7x + 2)/4 = 4
What is algebra?
It is a branch of mathematics that uses letters and symbols to represent numbers and quantities in formula and equations.
Differentiate algebraic expression and algebraic equation.
An algebraic expression is combination of numbers and variables and operation symbols while an algebraic equation is made up of two expressions connected by an equal sign.
Evaluate 8w + 1 when w = -7/2
-27
Solve 3(x – 4) = 2(–2x + 1)
x = 2