1 Answer

Gyzerok · Answer 1 · 2018-02-22T11:13:48+0000

The number of girls in the class: x
The number of boys in the class: x+7

girls + boys = 23
x + x + 7 = 23 |-7
2x = 16 |:2
x = 8

The number of girls in the class: x =
$\boxed{8}$
The number of boys in the class: x+7=8+7=
=
$\boxed{15}$

:)

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