3 years ago

The sum of 2 times a number and -7, added to 5 times the number

Mathematics

2 answers:

Anna007 [38]3 years ago

6 0

Let x be the number
2x - 7 + 5x
=7x-7

NeTakaya3 years ago

6 0

Answer:

-2.33

Step-by-step explanation: Added to means summed up to give

Let the number be represented by a;

2a + (-7) = 5a

2a-7 =5a

2a =5a+7

2a-5a = 7

-3a = 7

a = 7/-3

a = -2.33

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