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Savatey [412]
2 years ago
8

If you multiply a number by 3 and then add 40, the result is the same as if you add 17 to the number and then multiply by 2. Wha

t is the result if you subtract 9 from the number and then multiply by 4? .
Mathematics
1 answer:
Finger [1]2 years ago
6 0

Answer:

The number is -6

The second operation is -60

Step-by-step explanation:

Let the number be x.

Solving (a): The value of x

Operations 1:

Multiply by 3: 3x

Add 40: 3x + 40

Operations 2:

Add 17: x + 17

Multiply by 2: (x + 17) * 2

To find x, equate both operations.

3x + 40 =  (x + 17) *2

3x + 40 =  2x + 34

Collect like terms

3x - 2x = 34 - 40

x = -6

Solving (b):

Operations:

Subtract 9: x - 9

Multiply by 4: (x - 9) * 4

This gives:

(x - 9) *  4 = (-6 - 9) * 4

(x - 9) *  4 = -15 * 4

(x - 9) *  4 = -60

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Step-by-step explanation:

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