Answer:
Option C is correct
Subtracting 18 from both sides isolates the variable term
Step-by-step explanation:
Given an equation:
[tex]3x+18 = 54[/tex]
Subtract 18 from both sides we get;
Step 1.
[tex]3x+18-18 = 54-18[/tex]
Simplify:
Step 2.
[tex]3x = 36[/tex]
Divide both sides by 3 we have;
Step 3.
[tex]\frac{3x}{3}=\frac{36}{3}[/tex]
Simplify:
Step 4.
x = 12
Therefore, Subtracting 18 from both sides isolates the variable term in step 1 helps to solve the equation.