Question

resposta da equação 3x/10-15=7/2+x/5

Answer 1

3x/10 - 15 = 7/2 + x/5
3x/10 - 15/1 = 7/2 + x/5
mmc
10, 2, 5 = 10

(10:10.3x)/10 - (10:1.15)/10 = (10:2.7)/10 + (10:5.x)/10
3x/10 - 150/10 = 35/10 + 2x/10
3x - 150 = 35 + 2x
3x - 2x = 35 + 150
x = 185