SOLUTION: Elementary and Intermediate Algebra, ISBN: 9780073533490 Solve each system by substitution. page 487 number 3 y=x-5 3x-4(y-2)=28-x

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: Elementary and Intermediate Algebra, ISBN: 9780073533490 Solve each system by substitution. page 487 number 3 y=x-5 3x-4(y-2)=28-x      Log On


   

Question 168299This question is from textbook Elementary and Intermediate Algebra
: Elementary and Intermediate Algebra, ISBN: 9780073533490

Solve each system by substitution.
page 487 number 3
y=x-5
3x-4(y-2)=28-x This question is from textbook Elementary and Intermediate Algebra

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
y=x-5
3x-4(y-2)=28-x
----------------------
substitute the 1st into the 2nd equation:
3x -4(x-5-2) = 28-x
3x -4(x-7) = 28-x
3x -4x + 28 = 28 -x
-x 28 = 28 - x
----------------------
This is true for all values of "x".
================================
Cheers,
Stan H.