Respuesta :

AnimeBrainly
3x + 12 - 5x = 22

-2x + 12 = 22
-2x = 22-12
-2x = 10

x = -5

hope this helps
Let the number is a

then:
3 times the number = 3a

plus  +12


minus      -

5 times the same number= 5a

--------------------------------------------- all together gives 22

SO:

3a + 12 - 5a = 22


Solving for a:

-2a + 12 = 22

-2a = 22-12

-2a = 10

a = -5

so  the number is -5

Done


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