SOLUTION: Solve each problem by forming a pair of simultaneous equations. 1) Twice one number added to three times another gives 21. Find the numbers, if the difference betweeb them is 3.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Solve each problem by forming a pair of simultaneous equations. 1) Twice one number added to three times another gives 21. Find the numbers, if the difference betweeb them is 3.      Log On


   

Question 463735: Solve each problem by forming a pair of simultaneous equations.
1) Twice one number added to three times another gives 21. Find the numbers, if the difference betweeb them is 3.
Answer by reviewermath(1029) About Me  (Show Source):
You can put this solution on YOUR website!
Solved by pluggable solver: Linear System solver (using determinant)
Solve:
+system%28+%0D%0A++++2%5Cx+%2B+3%5Cy+=+21%2C%0D%0A++++1%5Cx+%2B+-1%5Cy+=+3+%29%0D%0A++

Any system of equations:


has solution

or



(x=6, y=3}