Steps for solving 3x + 18 = 54 are shown.
explain how step 1 solve the equation.
3x + 18 = 54
3x + 18 - 18 = 54 - 18
original equation
step 1
step 2
step 3
step 4

Step-by-step explanation:

The Step 1 is

Now, the step one helps to solve the equation because we need to isolate the variable, taking all the terms to the other side of the equality, and the first step is moving the term 18 to the other side. So, it contributes to the isolation of the variable, which is mandatory.

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

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