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coldgirl [10]
4 years ago
14

Which of the following values is a solution of 3|5 + x| = 12?

Mathematics
1 answer:
Alchen [17]4 years ago
4 0
It is easiest to simply just substitute any of the choices into the original equation and see which one satisfies the equation.

Given the equation: 3 * |5 + x| = 12

Using choice A. x = 7
3 <span>* |5 + 7| = 12
</span>36 =/= 12

Using choice B. x = 1
3 <span>* |5 + 1| = 12
</span>18 =/= 12

Using choice C. x = -9
3 <span>* |5 + -9| = 12
</span>12 = 12

Therefore, the correct answer is C. -9
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