Question

Помогите,пожалуйста

Решите систему уравнений 2х-1/10=2-9(y-3)/20
y-4/4=2x-9/3-3/4

Answer 1

$left { {{frac{2x-1}{10}=2-frac{9(y-3)}{20}|*20} atop {frac{y-4}{4}=frac{2x-9}{3}-frac{3}{4}|*12}} right.\left { {{4x-2=40-9y+27} atop {3y-12=8x-36-9}} right.\left { {{4x+9y=69} atop {3y-8x=-33|*(-3)}} right.\left { {{4x+9y=69} atop {24x-9y=99}} right.+\4x+24x+9y-9y=69+99;28x=168;4x=24;x=6\2*6+9y=69;9y=45;y=5$

Ответ: (6;5)