A algebraic problem with one variable: How old is Dan?

1. Dan's father is 45. He is 15 years older than twice Dan's age. How old is Dan?

Solving algebraic problem using one or two variables: How old is Karley?

Karley is twice as old as Lana. Three years from now, the sum of their ages will be 42. How old is Karley?

Matrices : Finding the Rank

How to find rank of a matrix: definitions and an example (4*4 matrix) with detailed explanations. Find the rank of A= [1 0 2 0] [4 0 3 0] [5 0 -1 0] [2 -3 1 1]. Show all work.

Five Step Problem Solving Method for Algebraic Problems with example provided.

Can you provide me with the basic steps for solving problems in algebra? Please provide an example (e.g., a problem solving for the variable x) using these steps.

Simplifying algebraic expressions

Simplify the following algebraic expression: 3X - (2 - X). Could you please explain the steps that I take when simplifying algebraic expressions such as this one? Thanks.

Simplifying Algebraic Expressions

I will use the ^ sign for the squared sign. Write the following algebraic expression in its simplest form: x^ + 2x + 3x^ + 2 + 4x + 7

Number/Algebraic Problems

Find a number such that 5 more than one-half the number is three times the number.

College Algebra

Can you please explan the following problems. I have included my answers.

It is an explanation of the relation between the roots and coefficients of an equation. If the roots of x3 + 3px2 + 3qx + r = 0 are in Harmonical Progression, show that 2q3 = r(3pq – r).

Theory of Equation Relation between Roots and Coefficients Harmonical Progression Arithmetical Progression Problem ...continues

Simplify the Expression

d divided by ab(c to the 4th) plus c divided by a(b to the third) c