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  • Grade 8
  • |ax + b| = c, whole answers

Absolute value equations with coefficients worksheets

With a number in front of x, an absolute value equation adds one move to the split: after the bars become two equations, each still has a coefficient to divide away. These free printable worksheets practice |ax + b| = c, both answers per question.

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Ready to printAbsolute value equations with coefficients
Absolute value equations with coefficients worksheet — |ax + b| = c, whole answers, free printable with answer key

The answer key prints on a separate page.

What's on this sheet

The split is the same as the entry level — the inside is c or −c — but the solving no longer stops there. |3x − 18| = 3 becomes 3x − 18 = 3 and 3x − 18 = −3; each is then a two-step equation, add 18 and divide by 3, giving x = 7 and x = 5. A child who forgets the divide, or who divides before splitting, loses the structure, so every step-by-step walk here splits first and solves each branch in full.

Why this sheet works

This is the reason it is a separate sheet from the basic one: the coefficient turns each of the two equations into a two-step solve, which is a real jump from a single add or subtract. Meeting it on its own, after the split is already secure, keeps the two-answer idea and the two-step solving from competing for attention.

How this one works

One question from this sheet, worked through a step at a time.

Solve |2x − 12| = 4

2x − 12 = 4or2x − 12 = −4
2x − 12 = 4x = 8
2x − 12 = −4x = 4
x = 4orx = 8
  1. The bars mean the inside is 4 away from zero — so it is 4 OR it is −4. Split into two equations.
  2. Solve the first, 2x − 12 = 4: add 12 to both sides: 2x = 16, then divide by 2: x = 8.
  3. Solve the second, 2x − 12 = −4: add 12 to both sides: 2x = 8, then divide by 2: x = 4.
  4. So x = 4 or x = 8 — both answers.