HeatherLynch
HeatherLynch HeatherLynch
  • 23-02-2016
  • Mathematics
contestada

Solve the system of linear equations by elimination. 3x−2y=4 6x−2y=−2

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Аноним Аноним
  • 23-02-2016
3x-2y=4 ---> Multiply -2
-6x+4y=-8

-6x+4y=-8
6x-2y=-2
+_______
6x-6x+4y-2y=-8-2
2y=-10
y=-5

for y=-5;
3x-2y=4
3x-2*(-5)=4
3x+10=4
3x=4-10
3x=-6
x=-2
Answer Link
Robloxgaming33k
Robloxgaming33k Robloxgaming33k
  • 03-11-2020

Answer:

x=-2

Step-by-step explanation:

3x-2y=4 ---> Multiply -2

-6x+4y=-8

-6x+4y=-8

6x-2y=-2

+_______

6x-6x+4y-2y=-8-2

2y=-10

y=-5

for y=-5;

3x-2y=4

3x-2*(-5)=4

3x+10=4

3x=4-10

3x=-6

x=-2

Answer Link

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