You are here:

- Home
- Science
- Math for Kids
- Algebra
- Algebra 1

Advertisement

Solve the system by substitution.

x=3y

4x-10y=2

Thanks for your help

Sorry I haven't been able to be here for awhile.

If x = 3y, then put that in for x in the 2nd equation.

That is, 4(3y) - 10y = 2.

Since 4*3 = 12, that is 12y - 10y = 2.

Since 12y - 10y = 2y, we have 2y = 2.

Dividing by 2 gives y = 1.

That means x=3.

Checking the 2nd equation out gives 4*3 - 10 = 12 - 10 = 2, which is what's there.

So, that is correct.

Algebra

Answers by Expert:

Any algebraic question you've got. That includes question that are linear, quadratic, exponential, etc.

I have solved story problems, linear equations, parabolic equations.
I have also solved some 3rd order equations and equations with multiple variables.
**Publications**

Documents at Boeing in assistance on the manufacturiing floor.**Education/Credentials**

MS at math OSU in mathematics at OSU, 1986.
BS at OSU in mathematical sciences (math, statistics, computer science), 1984.
**Awards and Honors**

Both my BS and MS degrees were given with honors.
**Past/Present Clients**

Students in a wide variety of areas since the 80's; over 1,000 of them have been in algebra.