Monday

March 2, 2015

March 2, 2015

Posted by **Nikki** on Monday, August 20, 2007 at 2:02pm.

2(x-y)+8y = 28

multiply out

20 x+3y-3=11 - Is this correct?

2x+14y = 28

Using the addition method, would you multiply the first problem by 2 and the second by 20?

No. In the second multiply out, you should have gotten

2x -1y+8y=28 or

2x+7y=28

No, in the addition method

20x+3y=14

2x+14y=28

multiply the second equation by ten, then subtract one from the other.

Bob, I read the questions as

x+3(y-1)=11 ------> x+3y = 14 and

2(x-y)+8y = 28----> 2x-2y+8y=28 or x+3y=14

which are two identical equations.

I think the 20 was the question number.

**Answer this Question**

**Related Questions**

Algebra - How do I solve for elimination method on this problem: 0.3x - 0.2y=4 ...

algebra - if you have the sign of > or < does this also mean = ???? so ...

Math - The problem to solve is: (x+20)(x-12)(x+4)>0 but I can't figure out ...

Math - 8*2sq+7*(4+1)= ? Can someone explain to me what to after the parenthesis...

Algebra - 89. Solve for x in the equation: 6/7x - 6 = -2 I posted this before, ...

Math(Please respond) - .50 - x / x = 3.20e-1 I need to solve for x. I was going...

math help please - I am having a hard time understanding recprocial with ...

Algebra 1 - I pretty much know this problem 4y+2x=18 3x+6y=26 multiply -3= -6x+-...

math - How do I solve the equations using the elimination method: .3x-.2y=4 and...

algebra - Solve. x/9-1/7=26/63 STEP 1: The LCM is _________ To clear ...