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45 votes
45 votes
One - step equation

-104 = 8x
please help I don't know and I have tried for an hour now.

User Grebulon
by
2.7k points

2 Answers

12 votes
12 votes

Answer:


- 104 = 8x \\ x = ( - 104)/(8) \\ x = - 13 \\ thank \: you

User Xarus
by
3.0k points
24 votes
24 votes

Answer:


\boxed {\boxed {\sf x= -13}}

Explanation:

We are asked to solve the following one-step equation.


-104 = 8x

We solve the equation by solving for x. We must isolate the variable by performing the inverse operation.

x is being multiplied by 8 (8x = 8*x). The inverse operation of multiplication is division. Divide both sides of the equation by 8. This eliminates the 8 on the right side of the equation so only x remains.


\frac {-104}{8}= (8x)/(8)


\frac {-104}{8}= x


-13=x

We can check our answer by substituting it back into the original equation.


-104= 8x


-104= 8(-13)


-104= -104

This checks out, so we know our answer is correct and x is equal to -13.

User Sinuhepop
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2.8k points