Respuesta :

Salutations!

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

value of [tex]b = 3[/tex]

Multiply 10 and 3

[tex]10*3=30[/tex]

Now, you can solve the equation --

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

separate the variables aside, and the numbers aside.

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

[tex]5a=75[/tex]

[tex]a=75/5[/tex]

[tex]a=15[/tex]

Hope I helped (:

Have a great day!

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