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What does a equal 2a-15 equals -1?

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Anonymous

∙ 15y ago
Updated: 8/17/2019

Do the problem like this:

2a - 15 = -1

Add 15 to both sides:

2a = (-1) + 15

Simplify

2a = 14

Divide by 2 to get the variable by itself:

a = 7

Now, check the problem: 2(7) - 15 = -1

14 - 15 = -1 This is true, so a = 7 is a good solution.

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∙ 15y ago
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