In Yuxin primary school, 108 people participated in the school's science and technology group, of which the number of boys was 1.4 times that of girls?

Suppose there are x girls, & nbsp; & nbsp; X + 1.4x = 108, & nbsp; & nbsp; & nbsp; 2.4x = 108, 2.4x ／ 2.4 = 108 ／ 2.4, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 45, 45 × 1.4 = 63, a: there are 63 boys and 45 girls

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