-3(5y-3)+4(2y+5)=0
– 15y + 9 + 8y + 20 = 0
– 15y + 8y = 0 – 20 – 9
-7y = -29
y = -29/-7
у=4,14285714286
6(9-2x)+7(4x+3)=10
54 – 12x + 28x + 21 = 10
– 12x + 28x = 10 – 21 – 54
16x = -65
x = -4.0625
-3(5y-3)+4(2y+5)=0
– 15y + 9 + 8y + 20 = 0
– 15y + 8y = 0 – 20 – 9
-7y = -29
y = -29/-7
у=4,14285714286
6(9-2x)+7(4x+3)=10
54 – 12x + 28x + 21 = 10
– 12x + 28x = 10 – 21 – 54
16x = -65
x = -4.0625