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aivan3 [116]
3 years ago
9

When i double my number and add 8 i get my number + 12 WHAT IS MY NUMBER

Mathematics
2 answers:
Anna [14]3 years ago
8 0

The first thing we must do for this case is to define variables.

We have then:

x: unknown number

We now write the equation that models the problem:

2x + 8 = x + 12

From here, we clear the value of x.

2x - x = 12 - 8\\x = 4

The unknown number is equal to 4.

Answer:

The number is:

x = 4

Sav [38]3 years ago
7 0
x-my\ number\\\\2x+8=x+12\ \ \ \ \ \ |subtract\ 8\ from\ both\ sides\\\\2x=x+4\ \ \ \ \ \ |subtract\ x\ from\ both\ sides\\\\\boxed{x=4}\\\\Answer:My\ number\ is\ 4.

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