Respuesta :

Answer:

-1.2

Step-by-step explanation:

15x+20−2.5x=2.5x+5−2.5x

12.5x+20=5

12.5x+20−20=5−20

12.5x=−15

12.5x /12.5  =

−15 /12.5

x=−1.2

Answer:

x=-1.2

Step-by-step explanation:

Question: 15x+20=2.5x+5

1) Subtract 2.5x from both sides:

12.5x+20=5

2) Subtract 20 from both sides:

12.5x=-15

3) Divide both sides by 12.5:

x=-15/12.5

4) Write the fraction as a decimal:

x=-1.2

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