Friday

October 31, 2014

October 31, 2014

Posted by **natasha** on Thursday, October 18, 2012 at 3:53pm.

- algebra 2 -
**Steve**, Thursday, October 18, 2012 at 4:06pmyou have q = 2p+1

so, substitute into the other equation:

4p + 2(2p+1) = 8

4p + 4p + 2 = 8

8p = 6

p = 3/4

now you can get q.

be sure to check your answers in both equations, lest

a) you made a mistake

b) I made a mistake

- algebra 2 -
**Joey**, Thursday, October 18, 2012 at 4:10pm4p + 2q = 8

q = 2p +1

Rearrange either so it aligns, I'll rearrange the bottom.

4p +2q = 8

-2p - q = 8 (subtract 2p from both sides)

Pick one that simplifies easily I'll use the 4p one.

4p + 2q = 8

2q = 8 - 4p

q = 4 -2p

Substitute q value for q in opposite equation

-2p + (4 - 2p) = 1

-2p + 4 - 2p = 1

-4p = -3

p = 3/4

plug p in to find q

- algebra 2 -
**Anonymous**, Saturday, March 9, 2013 at 11:38amSimplify: q – (7q + 1)

**Answer this Question**

**Related Questions**

algebra - i need help with these problems (either a solution or how to plug them...

Substitution Method-Plz help - Use the Substitution method to solve the system ...

math - solve each system of equations by substitution. y=3x-9 please help ...

Algebra - Can someone please help solve this? Solve by using addition or ...

substitution method - Solve by substitution method please help me solve this. I ...

algebra 1 - Solve the Foll by substitution x=1/5y 3x+2y=26 So, substitute 1/5y ...

Algebra - Solve: 3x-2y=10 2x+3y=-2 Graph: Substitution: Elimination: Show Your ...

Algebra - 8s+ 12 = 16, 6s+ 9t = 12 solve by substitution

Algebra 1 - Solve by substitution 2x+3y=40.50 3x+y=38.00

algebra - solve by substitution 2x+6y=30 -9x+y=61