Respuesta :

Step-by-step explanation:

so the first thing you need to do is open the brackets, so 3 times( b-4) equals to 3b-12. so until here very easy already. then just move all your number to the right except the variables. so like this you may get your answer

Ver imagen mikiikoma1
3b-12+5b=44
8b-12=44
8b=56
b=7
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