Respuesta :

Answer:

15

Step-by-step explanation:

5 times 15 is 75

10 times 3 is 30

75 -30 = 45

Answer:

The value of a is 15

Step-by-step explanation:

Given the equation

[tex]5a-10b=45[/tex]

we have to find the value of a when b is 3

[tex]5a-10b=45[/tex]

Substitute b=3, we get

[tex]5a-10(3)=45[/tex]

[tex]5a-30=45[/tex]

[tex]5a=45+30=75[/tex]

[tex]a=\frac{75}{5}=15[/tex]

Hence, the value of a is 15

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