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photoshop1234 [79]
3 years ago
7

X + 12 = -5. solve using subtraction property of equality.

Mathematics
2 answers:
lys-0071 [83]3 years ago
7 0
Since is addition you do the opposite and subtract 12 from 12 and -5 then 12 cancels out and -5-12=-17
nalin [4]3 years ago
6 0

Answer:

Step-by-step explanation:

Here is a simpler way:

subtract 12 from the x side of the equation. do the same to the other side.

Now the equation looks like this x= -17

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Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
Solve the equation by completing the square 5x(x+6)=-50
motikmotik
First lets distribute the 5x 
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Lets divide every term by 5 
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To complete the square we have to half the b value, which in this case is 6. Then square it. 
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Add that to both sides of the equation 
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