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3 years ago

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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Scorpion4ik [409]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

Solve the equation by completing the square 5x(x+6)=-50

motikmotik

First lets distribute the 5x
5x^2 + 30x = -50

Lets divide every term by 5
x^2 + 6x = -10

To complete the square we have to half the b value, which in this case is 6. Then square it.
Half of 6 is 3, 3 squared is 9

Add that to both sides of the equation
x^2 + 6x + 9 = -1

Find the binomial squared
(x+3)^2 (If you're wondering how i got that please comment)

(x+3)^2 = -1

Take the square root of the equation of both sides
(x+3) = +/- i
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and
x = -3 + i

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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