Post a New Question

Intermediate Algebra

posted by on .

Determine whether the point (1, 8) is a solution of the system
2x + 6y = 50
10x + 0y = 10
by substituting the point into each equation.

So far I have:
2x=6y=50
y=50-2x

10x+10y=10
10x+0(50-2x)=10
10x+0=10
x=10

y=50-2x
y=50-2(1)
y=50-2
y=48

PLEASE HELP! I'm lost. I've had tutoring and still do not understand fully.

  • Intermediate Algebra - ,

    Plug x=1 and y=8 into the two equations simultaneously and see if both are satisfied.

    They both are.
    2 + 48 = 50
    10 = 10

    Therefore (1,8) is the solution.

    Your equation y=50-2x
    is wrong.

  • Intermediate Algebra - ,

    You are confusing SOLVING the two equations (which is possible by various means) with TRYING OUT a sample solution you have been given, to see if it works.

    You have made the problem harder than it really is, and made mistakes in the process.

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question