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31 votes
Solve the following using inverse operations. 7x + 19 = 2x + 54X=7X=9X=5X= -7

User Tijko
by
2.6k points

1 Answer

22 votes
22 votes

Given:

7x + 19 = 2x + 54

The inverse of the equation above will be:

7x - 19 = 2x - 54

Let's solve for x:

Subtract 2x from both sides:

7x - 19 - 2x = 2x - 54 - 2x

7x - 2x - 19 = 2x - 2x - 54

5x - 19 = -54

Add 19 to both sides:

5x - 19 + 19 = -54 + 19

5x = -35

Divide both sides by 5:


\begin{gathered} (5x)/(5)=-(35)/(5) \\ \\ x\text{ = -7} \end{gathered}

ANSWER:

X = -7

User Gabriel Mitchell
by
2.9k points
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