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31 votes
31 votes
What step is first when solving
3/4 x-3 = -18
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User Tejas Anil Shah
by
2.9k points

1 Answer

7 votes
7 votes

Answer:

Add 3 to both sides.

Explanation:

Add 3 to both sides.

This is how you figure it out. Imagine you have a value you want to use for x on the left side, such as 5.

In other words, evaluate 3/4 x - 3 for x = 5

The left side turns into 3/4 × 5 - 3.

What order of operations would you use now on the left side.

1) Multiply 3/4 by 5

2) Subtract -3

To solve an equation, you do the opposite operations in the opposite order.

Since to evaluate the left side with a number for x, you end by subtracting 3, to solve the equation you start by adding 3. Then you divide by 3/4.

Answer: add 3 to both sides

User Bisjob
by
2.9k points