Algebra
Calculus
Trigonometry
Matrix
Question
Solve the equation
x1=15,x2=21
Evaluate
∣18−x∣=3
Separate the equation into 2 possible cases
18−x=318−x=−3
Solve the equation for x
More Steps
Evaluate
18−x=3
Move the constant to the right-hand side and change its sign
−x=3−18
Subtract the numbers
−x=−15
Change the signs on both sides of the equation
x=15
x=1518−x=−3
Solve the equation for x
More Steps
Evaluate
18−x=−3
Move the constant to the right-hand side and change its sign
−x=−3−18
Subtract the numbers
−x=−21
Change the signs on both sides of the equation
x=21
x=15x=21
Solution
x1=15,x2=21
Show Solution
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