SOLUTION: Solve the following system of linear equations. (If the system has no solution, enter NONE for each answer. If the system is dependent, enter INFINITELY MANY for each answer.)

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons -> SOLUTION: Solve the following system of linear equations. (If the system has no solution, enter NONE for each answer. If the system is dependent, enter INFINITELY MANY for each answer.)       Log On


   

Question 421817: Solve the following system of linear equations. (If the system has no solution, enter NONE for each answer. If the system is dependent, enter INFINITELY MANY for each answer.)
6x-2y=7
x-y=2
x = ?
y = ?
pls show me the steps to get the answer
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
6x-2y=7 .............1
x-y=2 .............2

multiply (1)by 1
Multiply (2) by -2
6x-2y=7
-2x+2y= -4

Add the two equations

4x=3

/4

x= 3/4
plug value of x in (1)

6x-2y=7
4.5-2y =7
-2y=7
-2y=2.5
y=-1 1/4