Algebra

Question 1

What is Algebra?

Answer 1

Algebra is the branch of mathematics that uses letters in place of some unknown numbers.

Question 2

p-7, 8n, 7t+n are expressions or equations?

Answer 2

Expressions

The letter stands for an unknown

Question 3

2b+7=16 is an expression or equation?

Answer 3

equation

Question 4

C = (3/5)m is equation or formula?

Answer 4

Formula

Equationa and formulae have equals sign. Expessions do not.

In a formula the letters stand for something specific.