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stiv31 [10]
3 years ago
8

-11 + 3(b + 5) = 7

Mathematics
2 answers:
irakobra [83]3 years ago
8 0

Step-by-step explanation:

-11 + 3(b + 5) = 7

-11 + 3b + 15 = 7

3b + 4 = 7

3b = 3

b = 1

Anna71 [15]3 years ago
8 0

Answer: The answer is A. 1.

Step-by-step explanation:

-11 <u><em>+ 3(b + 5)</em></u> = 7   Start by distributing the 3.<em> </em><u><em>3xb and 3x5.</em></u>

<u><em>-11</em></u> + 3b <em><u>+ 15</u></em> = 7    Next combine all like terms.<u><em> -11 + 15.</em></u>

<u><em>4 </em></u>+ 3b = <u><em>7</em></u>             You want to get b by itself so move the 4 using subtraction.           ..................................<u><em>4-4 and 7-4</em></u>

<em><u>3b = 3</u></em>                   B is still not by itself. Now we must divide <u><em>3 by 3 and 3 by 3.</em></u>

<u><em>b = 1</em></u>

Hope this helped. I explained the best I could.

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