SOLUTION: Im struggling how to understand this solutio. Equation 1 is (x+y)(2/15)=2 2x+2y=30 2x+2y=30 Equation 2 is (x-y)(1/5)=2 X-y=10

Question 1161274: Im struggling how to understand this solutio.
Equation 1 is (x+y)(2/15)=2
2x+2y=30
2x+2y=30
Equation 2 is (x-y)(1/5)=2
X-y=10
2x-2y= 20 why the solving comes up to this ( 2x-2y =20 )

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Im struggling how to understand this solutio.
Equation 1 is (x+y)(2/15)=2
2x+2y=30
2x+2y=30
Equation 2 is (x-y)(1/5)=2
X-y=10
2x-2y= 20 why the solving comes up to this ( 2x-2y =20 )
------
The solving didn't come up with anything.
Ask a question that makes sense.

-------------------------
(x-y)(1/5)=2
Multiply by 5
X-y=10
Multiply by 2 (for whatever reason)
---> 2x-2y= 20
why the solving comes up to this ( 2x-2y =20 )
QED
RELATED QUESTIONS
Eq 1 is (×+y)(2/15)= 2 2x+2y=30 2x+2y=30 Eq 2 is (x-y)(1/5)=2... (answered by Alan3354)

Write a point-slope equation for the line with the given slope that contains the given... (answered by John10)

Please help me solve this substitution problem. 3(x-y)=15 2x+y=7 The question I have... (answered by MathTherapy)

This is a work sheet from my daughter's teacher. Graph the linear system and tell how... (answered by stanbon)

Please help me solve this equation: 2x^2-y^2=1 x^2-2y^2=... (answered by Fombitz)

is this correct? 2x � 2y = 6 by graphing 3 points. -2x -2x... (answered by jim_thompson5910,vleith)

find the equation of the tangent line and normal line to the curve x^2+4xy+y^2=13 at... (answered by Fombitz)

Graph each equation: y= -x^2 + 2x - 1 x= -y^2 + 2y -... (answered by Fombitz)

Find the equation of line going through (3,4) and (1,-1). This is what I've done so... (answered by Alan3354)