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The number of girls in a school is 57 less than 2 times the number of boys in the school There are 143 girls in this school how many boys are in the school

Respuesta :

rohaliajohnson

Answer:

-43

Step-by-step explanation:

143 equal number of girls. The boys is unknown so they'll be x and the question says 2 times.So the equation would be 143=57-2x.

143=57-2x

so subtract 57 from both sides (57 and 143).

86=-2x

divide each side by -2

so x= - 43

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