Solver Steps Calculator

Write it as you would on paper. Implicit multiplication such as 2x and 3(x - 1) is understood. With no "=" sign the input is collected and evaluated instead of solved.
Solution
2
Algebra Calculator
Number of real solutions
1
Kind of equation
linear
Standard form
2x - 4 = 0
How it was solved
exact: rational-root theorem and exact division, then numeric roots of the remaining factor
Worked out from OpenStax, Elementary Algebra 2e, chapters 2 and 9: solving linear equations and quadratic equations and 2 other sources.

How this is worked out

4 steps
  1. Bring everything to one side: 2x - 4 = 0
  2. Add 4 from both sides: 2x = 4
  3. Divide both sides by 2: x = 2
  4. Check x = 2: substituting back leaves left - right = 0.
Solutionstable
x = 2
Check by substitutiontable
x = 2: left - right = 0

Results are general information, not financial, tax, legal, medical or engineering advice.