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Can someone help with this question please

Can someone help with this question please-example-1

1 Answer

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Answer:

Input: -7

Explanation:

We need to make an equation before solving for x, the input.

Output of A: x × 5 - 4 = 5x - 4

Output of B: x × 3 + 8 = 3x + 8

You know that the output of A is three times the output of B:

5x - 4 = 3(3x + 8)

Now that we have an equation, we can work out the value of x.

5x - 4 = 9x + 24

Isolate like terms.

-24 - 4 = 9x - 5x

Evaluate.

4x = -28

Find x.

x = -28 ÷ 4

x = -7

User Heron Rossi
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