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erastova [34]
2 years ago
10

Twenty more than four times a number is equal to the difference between 139 and three times the number. Find the number.

Mathematics
1 answer:
Lady_Fox [76]2 years ago
5 0

Answer:

x = 17

Step-by-step explanation:

First, let's turn this into an equation:

twenty more ( +20 ) than four times a number ( 4x ) is equal ( = ) to the difference ( - ) between 139 and 3 times the number ( 3x ).

4x + 20 = 139 - 3x

Now let's solve:

Subtract 20 from each side:

4x = 119 - 3x

Add 3x to each side:

7x = 119

Divide each side by 7:

x = 17

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Step-by-step explanation:

Given expression:

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