Sylenia Sylenia

07-09-2018
Mathematics

contestada

What is the answer to each of the following?

1) 5x + 2 = 3x + 12

2) 11x + 4 = 4x + 53

3) 25x + 60 = -5x + 90

Respuesta :

07-09-2018

Q1:

5x + 2 = 3x + 12

- 2 -2

5x - 3x = 10

+ 3x +3x

2x = 10/2 = 5

Final answer: x = 5

________________

Q2

11 x + 4 = 4x + 53

-4 -4

11x = 4 x = 49

+4x +4x

7x = 49/7 = 7

Final answer: x = 7

________________

Q3

25x + 60 = -5x + 90

-60 -60

25x = -5x = 30

-5x + -5x

30x = 30/30 = 1

Final answer: x = 1

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