Wednesday

September 24, 2014

September 24, 2014

Posted by **Lorri** on Friday, July 9, 2010 at 12:42am.

3x + 7y=10

x= 2-2y

A. Solution is an ordered pair

B. No solution

- substitution method -
**Reiny**, Friday, July 9, 2010 at 9:01amthis one is easy, just plug the second equation into the first

3x + 7y = 10

3(2-2y) + 7y = 10

6 - 6y + 7y = 10

y = 4

now back into x = 2 - 2y

x = 2 - 8 = -6

**Answer this Question**

**Related Questions**

math - solve by the substitution method 3x + 6y = 27 -2x + y = 12 what is the ...

math - solve by the substitution method 3x + 6y = 27 -2x + y = 12 what is the ...

Algebra 1a - Solve by the substitution method. 5x + 8y=0 x=2 2y Type ordered ...

Algebra - I just wanted to verify the answer I came up with. Solve by the ...

Algebra - Use substitution to determine whether the ordered pair (– 3, – 2) is a...

Algebra - Use substitution to determine whether the ordered pair (–2, –3) is a ...

Algebra - Solve by substitution method. 6x+9y=-12 -5x+y=27 What is the solution ...

algebra - use method of substitution to solve the system of linear equations. 2x...

math - Solve the following system using elimination. If a single solution exists...

math - Solve the following system using elimination. If a single solution exists...