Absolute value equationsSolve absolute-value equations
Solve each equation. Each has two answers.
An absolute value equation has two answers, and seeing why is the whole lesson: |ax + b| = c says the inside is c away from zero, so it is c or it is −c. These free printable worksheets ask a child to split the bars into two ordinary equations and solve each.
If they get stuck

The answer key prints on a separate page.
The bars are the only new idea, and they mean distance. |x − 3| = 7 asks which numbers sit 7 away from 3 — one above, one below — so it splits into x − 3 = 7 and x − 3 = −7, giving 10 and −4. A child who forgets the second equation finds only the positive answer and misses half of every question, which is why every step-by-step walk here writes the split out before it solves.
Two levels build on the split. The first keeps the coefficient at one, so each equation is a single add or subtract away from the answer. The second puts a number in front — |3x − 18| = 3 — so after the split there is still a divide to do, and both answers come out whole because the numbers are chosen for it.
One question from a sheet like this one, worked a step at a time — with a sentence saying what just happened and why.
Absolute value equations, step by step