8y-4/2+(y-2)=9(Do it fast its urgent)
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1
Answer:
Anytime we have two true equations, we can add or subtract them to create another true equation.
For example, here are two very basic true equations:
2 = 22=22, equals, 2
5 = 55=55, equals, 5
We can add these equations together to create another true equation:
2+ 57=2=5=7
Or we can subtract these equations to create another true equation:
2− 5−3=2=5=−3
Here's another example with more complicated equations:
2x+3+ 4x+16x+4=7=9=16
Great, now that we see that it's okay to add or subtract equations, we can move onto solving a system of equations using elimination.
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Step-by-step explanation:
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8y-4/2+(y-2)=9
8y-2+y-2=9
9y-4=9
9y=9+4
9y=13
y=13/9
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