Asked by Hello
Solve the system by the elimination method
6x+2y=-16
-x-3y=-16
6x+2y=-16
-x-3y=-16
Answers
Answered by
Damon
well first multiply the first one by 1/2
and the second one by -1
3 x + 1 y = -8
1 x + 3 y = 16
now multiply the first one by 3
9 x + 3 y =-24
1 x + 3 y = 16
-------------- subtract
8 x + 0 = -40
so
x = -5
-30 + 2y = -16
2 y = 14
y = 7
and the second one by -1
3 x + 1 y = -8
1 x + 3 y = 16
now multiply the first one by 3
9 x + 3 y =-24
1 x + 3 y = 16
-------------- subtract
8 x + 0 = -40
so
x = -5
-30 + 2y = -16
2 y = 14
y = 7
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