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KengaRu [80]
3 years ago
14

Is (4,9) a solution to the equation 3(x+2) = y ?

Mathematics
2 answers:
Mrac [35]3 years ago
8 0

Answer:

(4, 9) is not a solution to 3(x + 2) = y.

Step-by-step explanation:

3(x + 2) = y

Substitute (4, 9) into the equation.

3(4 + 2) = 9

Add the inside of the parenthesis.

3(6) = 9

Multiply.

18 ≠ 9

stepladder [879]3 years ago
5 0
(4,9) is not a solution to the equation.
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So we know that an average is the sum of the scores divided by the number of scores that were added together. In this case we are going to be dealing with 4 tests. So let's say x is the score for our fourth test. We can create this equation:

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