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-6x-3y=-30 -9x-y=-24 Solve by elimination
Question
-6x-3y=-30
-9x-y=-24
Solve by elimination
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Mathematics
4 years
2021-07-27T02:01:48+00:00
2021-07-27T02:01:48+00:00 1 Answers
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Answers ( )
Answer:
x=2. y=6
Step-by-step explanation:
Step (1)
-6x-3y=-30
-3(-9x-y=-24)
Step (2)
-6x-3y=-30
27x+3y=72
Step (3)
-6x+27x=21x
-30+72=42
Step (4)
21x=42
divide 21 on each side
x=2
Plug x in one of the two equations
to get the y
-6(2)-3y=-30
-12-3y=-30
+12. +12
-3y=-18
divide negative 3
y=6