Big Ideas Math: Modeling Real Life, Grade 6
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Big Ideas Math: Modeling Real Life, Grade 6 View details
2. Solving Equations Using Addition or Subtraction
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Exercise 21 Page 256

Substitute 28 into the given equation and then simplify.

No

Practice makes perfect
We can determine whether 28 is a solution by substituting it into the equation and simplifying using the order of operations.
w + 23 = 41
28 + 23 ? = 41
51 ≠ 41 *
Since both sides are not equal, 28 is a not solution.