Expression 8151

For what values ​​of x is the value of the expression 5x + 11 equal to that of the expression 7x + 31?

Correct answer:

x =  -10

Step-by-step explanation:


5x + 11 = 7x + 31

5·x + 11 = 7·x + 31

2x = -20


x = -20/2 = -10

x = -10

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