SOLUTION: 4.Solve by Elimination-Multiplication. ( ) 3x-2y=3 -x+y=1

Question 281267: 4.Solve by Elimination-Multiplication. ( )
3x-2y=3
-x+y=1
Answer by oberobic(2304) (Show Source): You can put this solution on YOUR website!
The given equations are...
3x -2y = 3
-x + y = 1
.
Multiply the second equation by 2 to set up for elimination...
.
-2x + 2y = 2
.
Then add the two equations...
.
3x -2y = 3
-2x +2y = 2
x = 5
.
Substitute x=5 into first equation to find y...
.
3x - 2y = 3
3(5) -2y = 3
15 -2y = 3
-2y = 3 -15
y = -12/-2 = 6
.
Check answer by substituting into the 2nd equation...
.
-x + y = 1
-5 + 6 = 1
Correct!
.
Answer:
x = 5
y = 6
.
Done
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