Swap two of the digits in this equation to make it a valid equation:
7 x 7 + 9 x 9 = 138
Solution
7 x 8 + 9 x 9 = 137
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Brain EaserBrain teasers, puzzles, riddles, and learning
Brain EaserSwap two of the digits in this equation to make it a valid equation:
7 x 7 + 9 x 9 = 138
7 x 8 + 9 x 9 = 137