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It's a linear equation in ' a '.

When you see one of these, it often happens that curiosity overtakes you, and you begin to wonder about the numerical value of ' a ' that makes the equation true. Let's find out:

3a - 7a + 12 = 32

3a - 7a = 20

-4a = 20

a = 20 / (-4) = -5

The equation is true if ( a = -5 ).

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15y ago
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Q: What is 3a-7a plus 12 equals 32?
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