In a class of 42 students, the number of boys is 12 fewer than twice the number of girls. find the number of girls

Let the number of girls be x.

Given condition: Total number of student in a class is 42 students and the number of boys is 12 fewer than twice the number of girls.

As per the given condition" the number of boys is 12 fewer than twice the number of girls"

twice the number of girls means 2x

12 fewer than twice the number of girls which means 2x -12.

Therefore,

the number of boys = 2x-12                      

Total number of students in class = number of boys + number of girls

⇒    42 = 2x -12 +x

Combine like terms on RHS,

42 = 3x -12

Add 12 to both sides in above equation;

42+12 = 3x-12+12

Simplify:

54 = 3x

Divide by 3 to both sides we have;

Simplify:

18 =x or

x = 18

therefore, the number of girls be x = 18.

slope is 35 and 20 miles is the y-intercept.

step-by-step explanation:

aloha~! my name is zalgo and i am here to you out on this amazing day. to answer your question, yes, nonzero numbers can have a greatest common factor and that would be 1. still don't get it? let me considering every number is divisible by 1 and hence every number has 1 as a factor of theirs. so, if 2 nonzero numbers didn't share any gcf (greatest common factor), they would still have a factor in common and that would be 1.

i hope that this ! : p

"stay and stay proud! " - zalgo

(by the way, do you mind marking me as brainliest? i'd greatly appreciate it! mahalo! x3)