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Anastaziya [24]
3 years ago
9

in  mrs. middleton's math class, there are 7 more boys than girls. if there are  29 total students in the cla

ss, how many boys are there?
Mathematics
2 answers:
Vadim26 [7]3 years ago
7 0
17 boys and 12 girls
Bas_tet [7]3 years ago
4 0
You have 17 guys and 12 girls
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ANSWER

The solution is

x=-3,y=-2

EXPLANATION

First equation

3x – 3y = –3

Second Equation:

5x – y = –13

Multiply the second equation by 3 to get:

Third equation:

15x-3y=-39

Subtract the first equation from the third equation:

15x - 3x =  - 39 -  - 3

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Divide both sides by 12,

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Put x=-3 into the first equation:

3( - 3) - 3y =  - 3

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Group like terms,

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