Equal Math Example 3

Follow the full solution, then compare it with the other examples linked below.

Example 3

easy
Fill in the blank: 12−5=_+212 - 5 = \_ + 2.

Solution

  1. 1
    Evaluate the left side: 12−5=712 - 5 = 7.
  2. 2
    Solve: 7=_+27 = \_ + 2, so _=7−2=5\_ = 7 - 2 = 5.

Answer

55
Equality is a two-way relationship: whatever the left side equals, the right side equals too. Finding the missing value requires evaluating the known side and working backwards from that result.

About Equal

Having exactly the same value or amount; the relationship expressed by the symbol == between two expressions.

Learn more about Equal →

More Equal Examples

Example 1 easy

Is the equation [formula] true? Show why.

Example 2 medium

Find the value of [formula] that makes [formula] true.

Example 4 medium

Determine whether [formula]. Justify your answer.

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