18-11-2020
Mathematics

contestada

Solve each system by elimination.

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Solve each system by elimination Help Ill mark you brainly class=

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ilia1683 ilia1683

18-11-2020

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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