3 years ago

Solve each system by elimination. (Help! I’ll mark you brainly)

Mathematics

1 answer:

zheka24 [161]3 years ago

4 0

Answer:

2) y=-1 4)y=-1

Step-by-step explanation

4x+8y=20

+ -4x+2y=-30

---------------------

10y=-10

isolate y by dividing 10 on each side

y=-1

-6x+5y=1

+ 6x+4y=-10

----------------------

9y=-9

y=-1

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